How to Make Eggshell Calcium (and Why You’d Want to)

Photo of homemade eggshell calcium DIY project

Calcium is the most abundant mineral in our body.

While most of our calcium resides in our bones and teeth, it’s also important for muscle contraction, nerve health, enzyme activity and cell formation.

In fact, our bodies need ample, daily amounts of calcium… and if we don’t get what we need, our bodies have no problem pulling excess stores from our teeth and bones.

So, let’s just say we want to be sure we’re consuming PLENTY of calcium, especially if we are a pregnant or nursing mama!

I do best consuming ~ 2,000mg of calcium a day.

I feel the most calm and balanced and don’t suffer from muscle soreness or body stiffness. High-quality organic, and preferably raw, dairy products are phenomenal sources of calcium as are bone broths, fish bones, and even almonds.But since I would need to drink 2 quarts of milk to hit this quota, I sometime rely on a calcium supplement, especially when I’m nursing or pregnant.

Which one to chose? Calcium citrate? Hydroxide? Gluconate? Aspartate? Or Coral Calcium? And, I could go on!

But as natural mamas, we know that the best source is FOOD since it’s the mostly easily accessible for the body.

Did you know that eggshells are a great, inexpensive, natural source of calcium?

Yes, EGGSHELL Calcium!

High-quality eggshells contain 27 essential microelements but they’re mostly composed of calcium carbonate, a form and structure that’s very similar to our bones and teeth.

In animal and human tests, eggshell calcium shows increased bone density, less arthritic pain, and even stimulates cartilage growth. You can read more about it here.

Sounds great, huh? And it’s really easy to make.

Ingredients and equipment:

  • 1 carton of organic pastured chicken eggs
    If you can get fresh from the farm, even better and try to get eggs from chickens that don’t eat soy. Pay the extra price since this will serve as a supplement and is much cheaper than buying calcium tablets. Confused how to find or know if eggs are good quality? Here’s a tip… the thicker the shell, the more nutrients. I don’t have a good source close to where I live, so I order mine from Tropical Traditions and their farms in Wisconsin. I love theirs because they are SOY-FREE, something very hard to find in store bought, even organic eggs.

You will also need:


  • Use up your eggs as you normally would, keeping the shell in the carton to make your supplement
  • When you have your dozen shells, rinse them well in water. Remove any whites that might be stuck but don’t remove membrane as these have extra nutrients.
  • Fill a stock pot with approximately 6 cups of filtered water and bring to a boil.
  • Carefully put your eggshells into water. (This will kill any harmful pathogens)
  • Let cook for 10 minutes.
  • Drain shells.
  • Spread the shells on glass or stainless steel baking sheet and let dry overnight. In the morning, put in a 200 degree (Fahrenheit) oven for about 10 minutes to completely dry out.
  • Once completed, put a few shells into a coffee grinder and run until they are pulverized into a granular form. Continue until all of your shells are powder.
  • Store in a tightly sealed Mason jar in the cupboard away from heat or moisture.

How to Consume Eggshell Calcium

1 tsp. contains approximately 800-1,000 mg. of calcium. Consume by mixing in a small amount of water with a meal. Consume 3/4 to 1 tsp daily, divided in 3 servings with meals. Don’t consumer more than 1 tsp a day as it can irritate sensitive digestive tracks.


How about YOU? What’s YOUR favorite way to get calcium into your diet?

Eggshell Calcium Studies:


About Genevieve

After battling weight, digestive, and immune system issues for years, I know firsthand the harmful effects of conventional life. Through a long road of detox, I discovered the healing power of natural living. This transformation spread into every area of my life - physical, emotional & spiritual. Now I'm on a mission to help other mamas live happier, healthier lives.

Please note: Many links on this site, especially those to Amazon, are affiliate links. Should you click on these links and purchase something, the price is no different for you and I earn a small commission. Thanks for supporting Mama Natural!

Disclaimer: The statements made here have not been approved by the Food and Drug Administration. These statements are not intended to diagnose, treat or cure or prevent any disease. This notice is required by the Federal Food, Drug and Cosmetic Act.


  1. Suzan Green June 26 at 4:46 pm

    …if you want the benefit of the Hyluronic acid that is in the membrane, peel it out before cooking the shells-heat destroys Hyluronic Acid

  2. Marie June 22 at 3:21 pm

    Hi! I would like to try this with my 3 1/2 years old boy (he have already 2 cavities and I think it would help to slow down or even stop the process) and my 1 1 /2 year old baby… Do you think it’s gonna be ok for them? And how much I give them?
    And by the way, thank you for sharing!

    • Debbie July 4 at 12:01 pm

      I’m not sure about calcium helping with cavities. But I do know of people healing cavities brushing with Young Living Thieves oil or Thieves toothpaste. I have also seen various articles online, some of which include bentonite clay.

    • Catia May 20 at 5:10 pm

      The study does not specify which calcium supplements the participants took, so I’m thinking they are probably from a non-natural source. There is a difference between synthetic and natural supplements, and although the author from the website citing the study, Sayer Ji, Founder, criticizes the natural ones (e.g egg shells), I couldn’t find it anywhere in the study reference to eggshells or another form of natural calcium supplements in specific. Just sharing my thoughts on this :)

  3. Catia May 12 at 9:36 am


    I’m 9 weeks pregnant, and I would really like to try this, but I’m concerned if it would be harmful to my developing baby. We are told not to eat a lot of things during pregnancy due to bacteria etc, so my question is, does boiling destroy any possible bacteria in the eggshell that could harm my baby?

  4. Myk May 4 at 11:15 pm

    Can you just hard boil the eggs and then peel them, let them dry overnight? Oh and put them in oven for 10 minutes at 200 degrees, that would work too right?

    • Sherri burKett May 7 at 7:36 am

      Yep! I’ve done it that way. Dries them out so well that I didn’t even need a coffee grinder. Just a food processor. Actually, boiling the shells and draining them, like they mention here, would result in literally pouring calcium down the drain.

  5. TyRAN April 28 at 9:43 pm

    My family thinks I’m crazy for eating eggshells! But to me it feels like the most trustworthy way of getting my calcium without any undesirable extras like the hormones in dairy or the phytic acid of my almond milk (phytic acid = blocks mineral absorption). So the eggshells make me very happy. Sometimes I overdose and it backs me up (bathroom-wise), but I like to take it along with a magnesium supplement to assist with absorption.
    I buy a carton of organic eggs, and whenever I’m cooking eggs (I use about 4 at a time) I rinse out the emptied shells and boil them for a while — until the pink stamp on the shell disappears, if there is one — and then I place them on a sheet of paper towel to dry out for a day. When I’m ready I crush them up with a marble rolling pin! The shell & dried membrane particles are stored in a little container and keep for months as long as there is no moisture.

    • Araceli July 15 at 9:27 pm

      This is the first time I hear about egg crushing for calcium.
      in all honesty, does it really work? How often do you check your calcium level to confirm it’s working?

  6. Claire April 22 at 5:27 pm

    I’ve had to give up dairy due to a sensitivity to milk butyrophilin so looking for ways to make sure I get enough calsium. I tried this method but by mistake I put the egg shells in a 200 degees C oven! not F. So double the temp. They came out a bit burnt at the edges. Do you think I could still use the shells if I remove the burnt bits?

  7. tom April 5 at 3:48 pm

    I just wanted to let you know that the two studies you cite are really the same study listed twice in Pubmed.

    I have a question. Egg shells will dissolve in vinegar. Has anyone studied the bioavailability of calcium in liquid form? Vinegar is consumed by many people. Dr. Jarvis recommended it with honey years ago. The debate in calcium supplements is whether the calcium is available to to the body and useabe bologically. It would seem intuitive that the nutrients in an egg shell would be more easily digested in liquid form and the vinegar and honey would probably settle a sensitive stomach. Anyone have thoughts on this?

    • TyRAN April 28 at 10:04 pm

      Yes, when I take eggshells as is, I notice a lot of it just comes out the other end… But that’s not the case when I take eggshells along with magnesium. Back when I was reading around the web about using eggshells to combat cavities and restore tooth structure, someone commented that they did not notice a visible change in their cavities until they added the magnesium. Then the cavities disappeared over several weeks! I myself don’t have noticeable tooth damage in the first place but I do notice a real improvement in the enamel of my teeth and nails when I take magnesium + eggshells.
      I’ve read that calcium is best absorbed and used by the body when combined with Vitamin D (sunshine in the summer, supplement during the winter), Magnesium, and even some Vitamin C.
      By the way, calcium is more easily expelled from the body than it is absorbed. Animal protein and salt make you lose calcium (when you pee) faster than you can build it back up again. Hence the plague of osteoporosis in our burger & fries loving society, despite our equal love of dairy!

    • wontwice June 15 at 9:03 am

      like most supplements, vitamins you should space them out about 2 hours apart the body will absorb what it needs also prevents reactions to meds and supplements.

  8. Rebeli April 4 at 3:21 am

    Hello! I wonder if the hit destroyed the calcium?
    We can wash the eggshell, dry overnight, pulverized and then eat.

    • wontwice June 15 at 9:10 am

      i would heat in oven to kill any unwanted bacteria.

  9. Tyler March 10 at 10:46 pm

    I would just like to throw some science into this discussion. Eggshell, due to it mostly being calcium carbonate, will make acids more neutral. This process releases Calcium into a form that is digestible. Your natural stomach acid should work in your favor in this respect. Just plain shell dust will be absorbed, as long as your intestines can keep up. Due to this process requiring acidity, there should not be a significant amount of calcium in water left over from boiling. That is not to say there is none. Just not much. To produce a rapidly available source of calcium, dissolve them in vinegar until the bubbles stop. This should be used sparingly because it makes the calcium easier to be washed away from targeted plant roots.
    Microwaving eggshells will not decrease the calcium content. Calcium is a mineral and microwaves only degrade vitamins.
    Boiling shells should remove anything like chicken poop and kill germs. Microwaving might do the same, I don’t know, but I would go for boiling or baking for 15 mins at least at 180° F if they are to be eaten.
    I hope this helps with some of the points brought up that chemistry and biology can provide answers to.

    • Anna April 19 at 2:57 pm

      This might sound silly after all of this talk: I have merely been putting my shells aside in a ziplock thinking I’d get to this in a few days. Well, it has been a month thanks to having our first little one. Still safe to use since it will still be put in the oven?

  10. Christine March 1 at 1:24 pm

    I was looking around a few different sites to compare techniques and they vary.
    One site says to bake at 300 degrees for 20-25 minutes,
    another site says to bake at 300 degrees for no more than 5-7 minutes,
    another site says to boil them for 5 minutes,
    another site says to boil for 10 minutes then let dry then the next day bake at 200 for 10 minutes…
    and finally, another site says to do nothing – just crack open the egg like normal, let it completely dry out for a couple days, then grind it up.

    What is your take on all of this? Do you feel its absolutely necessary (or not) to bake or boil the eggshells first? Is 20 minutes okay or is 5-7 minutes much better? Does it need to be boiled AND baked?

    • Genevieve March 5 at 9:08 am

      The boiling helps to get the membrane off the shell and kills any pathogens. The baking dries the eggshells so you can grind them. If you grind when still damp, you can get mold. I like my method but do what works for you!

      • Karen March 17 at 5:21 am

        The membrane should be kept on. I have read in several articles that it contains important nutrients for the joints which helps arthritis.

        I have used ground eggshell for years for my chickens, birds, dogs and cats.
        I’ve recently wondered about using it for myself, so decided to do some research. It’s all good!!

        • TyRAN April 28 at 10:09 pm

          This might be true since eggshell membranes are now being sold as supplements in the regular pharmacies, and it says it’s for joint pain relief from arthritis. :) Peeling out the membranes is such a pain anyway, as long as it has time to dry out, it can be easily ground up with the rest of the shell.

      • Karen April 6 at 3:55 am

        The billing for 10 minutes is the same as my disinfecting routine with my breast pump gear. But I’ll also use the stream bags which are much easier. Could I just put my eggs in the Medela stream bag and disinfect that way?

        • Karen April 6 at 3:56 am


  11. Christine February 28 at 11:21 pm

    Is it absolutely necessary to cook the egg shells first?

    • Karen March 17 at 5:22 am

      Depends on what your going to use it for I think. I have washed and dried them rely well and used for my dogs, cats, chickens and birds!

  12. agata February 16 at 6:49 pm

    “and try to get eggs from chickens that don’t eat soy”? why?

    • agata February 16 at 6:51 pm

      please explain to me why the chickens shoudn’t eat soy. is it because of estrogens? i just find out that the eggs i buy are from the chickens which eat 5% of soy.
      thank you :)

      • Cat, The Herbal Prepper May 8 at 4:08 pm

        Chickens are not supposed to eat soy. Have you ever seen a chicken fly up to the top of a bean or grain plant to eat? They peck at the ground. What do you think they will find on the ground? Bugs, worms, seeds, etc. That’s what they are supposed to eat. All those egg cartons at the grocery store boasting how the chickens that laid them ate an “all vegetarian diet” as if thats a good thing, is all marketing spin.

        • Jolie May 15 at 9:57 am

          And just to add to your great response: soy is the number one genetically modified food in the world. Next is corn… It’s important for people to know this and always feed organic to their family (animals included here of course!)

    • Isiris March 27 at 4:47 pm

      Ninety percent of all soy products are Genetically Modified. Your best bet is to get eggs from chickens being fed all organic feed.

  13. Mark January 10 at 3:50 am

    Great idea for calcium and I know boiling the eggs is a very important step but doesn’t this cause calcium to leach out of the shells and into the water? If so, wouldn’t you be better off saving the water and drinking a tablespoon or so at a time of this instead?

    • Carol January 18 at 12:10 am

      I’ve been making eggshell calcium for awhile now. I keep the shells in the freezer until I have a dozen or so shells. Then I cook them in the microwave for 2 to 3 minutes without water, which preserves the calcium, kills pathogens and dries them out at the same time. Okay, I know it’s not natural to use a microwave, but it works well for this purpose. I buy empty capsules at our natural food store and fill them with the ground calcium. I take three capsules a day, which is just under 1 teaspoon.

      Another tip: Wash your eggs before you open the shells. It’s much easier than rinsing broken shells.

      • lily March 1 at 12:14 am

        you should really read up about microwaves and their harmful effects on the nutrients

        • Kathy March 26 at 11:20 am

          Microwaving has a negative effect on vitamins, NOT minerals. Calcium is a mineral and microwaving the shells will not effect that at all!

        • Kaitlyn April 7 at 2:20 am

          In order to destroy calcium (a nuclear reaction) you’d need a large particle accelerator. Microwaving it doesn’t hurt.

    • Emerald February 15 at 1:07 am

      Does anyone know how much calcium is leached into the water when boiling? Would like to drink the calcium-enriched water, but want to know how much calcium it contains.
      Also, will adding vinegar help with the leaching process?
      Thanks in advance for any links and info.

      • Emerald February 16 at 7:36 pm

        Just interesting article re: benefits of eggshell calcium vs milk and dairy from Natural
        This site deletes posts with links for certain sites, hence re-posting without the link.
        Just go to Natural News and type in calcium from egg shells in search area on right top corner.

        Not sure why “for two months each year”. Wonder why not everyday?

        Copy and paste:
        take a 1/2 teaspoon a day, which can be taken with fresh squeezed orange juice or lemonade. For prevention, the shells are consumed every day for two months each year.

        • Emerald February 16 at 7:37 pm

          Correction on typo — Meant “just found interesting article…..”

      • Emerald February 16 at 10:33 pm

        Did research and found this:

        One whole medium sized eggshell makes about one teaspoon of powder, which yields about 750 – 800 mgs of elemental* calcium plus other microelements, i.e. magnesium, boron, copper, iron, manganese, molybdenum, sulphur, silicon, zinc, etc. There are 27 elements in total. The composition of an eggshell is very similar to that of our bones and teeth.

        *Elemental amounts are the amounts absorbable.


        But also found very interesting article that for age-related bone loss, Vit C, D3, K2, boron, silica & weight bearing exercises are more important than supplemental calcium. Too much calcium clogs arteries.

      • Karen March 17 at 5:24 am

        Search egg shells in Google. There are heaps of articles, sites and blogs on this topic. You will find your answers this way

  14. KK January 8 at 6:09 pm

    I use egg shells to brew my water kefir since the yeast/bacteria culture feed on minerals. I have assumed that I am adding calcium to my diet as I drink the the water kefir. Does anyone have any more info on this?

  15. MEL November 12 at 4:36 pm


    when you make homemade egg shells for calcium, how many days it will be using with fresh?
    is there any time for or can I use till my eggshells end?

    and how I can keep that egg sheel in fridge or tempurature room is enough to store?

    thank you for answers have a healthy days.

  16. Jessica October 5 at 3:25 pm

    How much should I give a 3 and 5 year old?

  17. Hope August 19 at 7:12 pm

    So when I’m trying to get calcium out of eggshells for my garden I break down the egg shells (which are calcium carbonate I believe) in 2 to 1 water to vinegar which separates it into calcium and hydrogen. My question is, is the calcium what is left over in the egg shell or is it in the water.

    • Lili August 26 at 2:17 pm

      Hello there! I believe it’s in the water. When making bone broth you typically add cider vinegar and let sit for an hour to ‘leach’ the calcium and nutrients out of the bones and into your yummy broth! I would suspect the same with egg shells. So, skip on the vinegar treatment, unless you want to drink the water or use it in a soup ( but I haven’t tried this).

    • Joshua August 2 at 5:30 am

      the liquid left behind from dissolving eggshells in vinegar is where the calcium is. The acid in the vinegar breaks the calcium carbonate (what eggshells are) into pure calcium and carbonate ( CO3 gas) which is what causes the mixture of eggshells and vinegar to bubble. Normally what I do when my aquaponics system is low on calcium is filter the vinegar and egg mixture through a coffee filter after the bubbling stops then pour the liquid into the tank. The reaction also neutralizes the acidity of the vinegar so it shouldn’t effect your ph either.

  18. Blues August 5 at 1:58 am

    I need help!!

    I have been grinding up my last few cartons eggs since reading this and I’m super into the idea! But.. I feel like the powder is way too “crunchy”.

    I jumped over to this site from a link on another site talking about making toothpaste. A reader suggested making your own eggshell calcium for the recipe rather than buying her suggested calcium magnesium powder.

    So, I originally made it for my recipe. I feel like it is DESTROYING my teeth! I get chunks of eggshells when I’m brushing my teeth so I brush really lightly but still.. I have also been trying to take it in the morning by mixing in a glass of water, and I get all these eggshells stuck in my throat.

    Should I give up the toothpaste dream or is it possible to make it more powdery? I am using a coffee grinder but I also have a Ninja food processor.

    • Sue October 6 at 8:33 am

      I have a capsule machine and I buy veggie caps to make my own natural supplements. Neither one are very expensive. I think you can get them from Amazon. I also have chickens so I will make up capsules with ground egg shells for myself. I usually give group shells to my chickens but now I’m going to try them.

      • Thomas December 5 at 1:17 pm

        You clearly only read the first paragraph because this person was asking about using it in toothpaste and NOT about taking it themselves. So your comment about capsules doesn’t apply here.

    • Gen October 28 at 4:11 am

      I have vitamix dry container and it blends mine into the finest, softest powder! You just need a better grinder.

    • Carol January 18 at 12:18 am

      I put the ground eggshells in vegetable capsules from a natural foods store. You can get a machine to fill the capsules, but I use a tiny funnel from a beauty supply store. Works great!

    • Isiris March 27 at 4:55 pm

      I used to use a coffee grinder to make calcium for my dogs & it was crunchy too. But with the NutriBullet, I can grind it into a powder. If your Ninja has a separate blade for grinding nuts, etc., use that.

  19. More July 9 at 9:48 pm

    For additional calcium I usually drink milk, eat eggs and seafood such as crab, fish ..
    I was wondering what your homemade safe or not?

    • dave August 17 at 7:30 pm

      why would you assume you get calcium from milk? please stop believing what your told, the body cannot assimilate calcium or any other nutrient (apart from sugar and water) from milk due to the pasteurising process. also eggs cause sulphuric acid so if your ill its not a good idea to consume eggs or milk although the calcium you get from the eggshell is ok. to truly protect your bones and teeth you need to take Boron, Boric acid is its natural form on this planet and is essentially sunlight believe it or not, you need 3 mg a day of Boron Boric acid is 17.5% and Borax is 10% of Boron you also need to combine with 4-600 mg of magnesium a day.

      • pepe September 29 at 8:47 pm

        The specialist has spoken!

      • shawn kearney October 5 at 9:38 am

        You are not seriously suggesting that heating milk to around 160 degrees for 15 seconds degrades calcium in such a way that it is not accessible by the body.

        You’re seriously saying that.

        • Sweets April 30 at 4:44 pm

          Saponification in the stomach is the reason adults don’t absorb Ca+

      • Andrea November 16 at 11:12 am

        Pasteurization is The heating of milk to a temperature of at least 161°F to kill the bacteria in the milk. If this process makes the calcium of the milk un-absorbable by the human body, then how is it that we can absorb the calcium of the egg shells which have been raised to the temperature of 212°F when they were boiled? I’m not trying to be difficult or antagonistic, but rather I truly want to understand The science behind it all. It Currently does not make sense to me!

      • Maureen November 24 at 8:50 am

        Doesn’t all boric acid contain arsenic?

      • jennifer November 29 at 4:03 pm

        Kind sir, perhaps this person drinks raw milk, which is in fact an excellent source of calcium, among other things. Why do you assume they meant pasteurized milk?

      • Maureen January 14 at 5:25 pm

        A recent New York Times article reported a large study in Scandinavia found that women who drank at least 3 glasses of milk a day not only did not improve bone density but were dying at a much higher rate than other members of the study who ate/drank dairy in fermented forms such as cheese, yogurt, kefir, etc. Women who ate/drank fermented dairy did improve their bone density. So it appears that drinking milk (and I assume this is pasteurized milk, although I don’t know for sure) is dangerous. Too bad for me. I love milk and cannot eat cheese because of high cholesterol. Looks like unfermented milk is junk food.

        • Gina June 23 at 9:26 am

          I had extremely high triglycerides of and low hdl. i went on a diet of no flour or sugar and low carbs, using loads of eggs and cheese and yoghurt or kefir. in 2 months my triglycerides lowered to 80 from 295 and my hdl went up. So look up the cholesterol myth online. I also drank raw milk. I stay on this diet for life. Literally! I’m going to try adding a soft boiled egg to my morning green drink. shell and all, because of this post. Stay away from statins!!!!

      • jim rose January 24 at 8:50 am

        dave recommended TOO much Magnesium in a day. Most if not all people cannot assimilate effectively that much Magnesium. I’d add Mag every other day and use the Magnesium oil that is out now and rub it onto your skin.
        I have also gotten used to the ground up but crunchy eggshells. After cleaning the whole egg(s) in a water vinegar mixture, I rinse them off and put them in a blender with a slight amount of lemon or orange juice. Grind them to a paste if possible but my blender cannot get the grains that fine. I mix the ‘mix’ in with about 3-4 eggs in the blender then scramble them. A little salt and pepper and salsa makes them taste good enough. I cannot take this amount of calcium system cant accommodate it but 2-3 times a week I do and I feel amazingly strong and at ‘peace’ all day. The chewing of the shell powder helps to assimilate the calcium from the start and it is in a better form when it gets to the stomach etc for use. I’ve done this for a year and think its as important to my well-being as using the Iodine Protocol. If you have no idea what the Iodine Protocol is, research it, you’ll be amazed what you don’t know how important Iodine is to your life….the RDA for Iodine is a drop in the bucket from what you actually need to thrive

      • Kate February 1 at 2:37 pm

        I only drink raw milk. plenty of calcium there.

      • Kate February 1 at 3:46 pm

        Why do you have to boil them? I baked them in a nice hot oven then ground them. Seems to be working fine

      • Jbird February 14 at 3:04 pm

        I love how you say “stop believing what your told”, and then proceed to tell us something. And why would you ASSume they are drinking pasteurized milk?

  20. Jan Drake July 1 at 3:50 pm

    If your going to boil the eggs, don’t throw out the water when your done. Let the water cool then add it to your garden. Tomatoes and other nightshade plants love the extra calcium. One way to prevent “end blossom rot” in tomatoes is by adding calcium. You can also top dress with the powder, or make a calcium tea that you can water your plants with. It will also raise the PH balance of your soil.

    Some people say that the powder will keep slugs away, it’s like glass to them and will shred their undersides.

  21. Holly June 13 at 9:09 am

    *grabs popcorn and sits back to read the comments*

    • Jill June 30 at 2:26 pm

      I’ve used calcium carbonate in the past. (dolomite powder) I tried to use it in my coffee maker with the grounds and it clogged up the paper filter…i did this to try to alkalize my coffee a bit(now I use baking soda) i’m not sure we have the same digestive systems as chickens(see other posts) to break down the shells…so I think maybe i’m going to boil my shells, cool the water and make ice cubes out of it to add to soups,.stews and home made ice tea…that is, if I do this at all…there is a raging debate over whether we should be taking calcium at all. Remember, cows get their calcium from eating grass! Kale,.bok Choy etc. contain calcium.

      • Jill June 30 at 2:33 pm

        Me again… Also: some studies show that without Vitamin k,.calcium will “calcify” our arteries,.heart, kidneys, gallbladders instead of our bones…. Which is a sign of aging….

        • Louise March 24 at 1:30 am

          Absolutely true. I just been diagnosed with osteoporosis. I m at the heart of thorough research for strengthening my bone and … especially my gums. K2-m7 n vit D are largely discussed and used by naturopaths n their clients. After all…what’s the use in taking it if doesn’t end up at the right place.

          It apoears that now calcium is to magnesium what k2-m7 is to D3…all this lil mix…according to the experts, allows for the calcium to b removed from where it could create problems-in the tissues, and move it in the bones and teeth. I just restarted taking eggshells. I will experiment with the recipe here! It’s rough on the stomach to take it like I was. Each time, after ingesting it, i would end up feeliing tired, not too good, and was getting really painful headache. I was not cleaning the shells but simply grinding them and rinse my mouth with the piwder n water . Drink some of it… brother…bad idea…

          Tonight i ordered these cocofed eggs. We’ll see how that goes.

          Thank you for all your posts it really helped me. It provided me with so more info! Hey…thanks guys. Louise

          • Louise March 24 at 1:32 am

            Sorry for the long post. 8 (

      • Sue22 December 28 at 10:33 pm

        Thanks for bringing this up. Some folks recommend avoiding calcium carbonate to help to decalcify the pineal gland. Thoughts?

      • Maureen January 14 at 5:32 pm

        Cows get calcium from grass, but we don’t have four stomachs so I doubt humans can derive much calcium from greens. Don’t forget the importance of K-2. This is a vitamin that is found in the milk of mammals but not in bloodstreams of the same pregnant women who make K-2 in their breasts. Humans have to get K-2 from Gouda cheese, pastured egg yolks, dark meat poultry, Natto, cottage cheese, other fermented cheeses, etc.

        • glow January 30 at 3:06 pm

          Um cows don’t have 4 stomachs it’s 1 stomach compartmentalized that’s why they are ruminant animals.

          • Charlotte February 1 at 10:49 am

            1 stomach 4 compartments so to speak.

    • ivy June 6 at 6:44 am

      i know!

  22. Bea June 1 at 10:40 am

    I blend eggshells, washed and disinfected with hydrogen peroxide on the nutribullet 900, they are powder in a blink.

  23. richard May 28 at 3:13 pm

    calcium, magnesium and zink all work together, is there a natural way to get zink like you are with the calcium?
    You need to moderate and delete some of the bad/mean and off topic comments

    • dave August 17 at 7:32 pm

      zinc cancels out magnesium never take these together, always wait 3 hours between eating so your body can use up the nutrients for where it needs them

      • shawn kearney October 5 at 9:41 am

        how about we just eat healthy food and not worry about all this supplementation insanity.

        • missy October 9 at 12:35 pm

          Do you realize you would have to eat 50 oranges to equal the nutrition value of an orange our parents ate 50 yrs ago? Our soil is so depleted of nutrients which is why we need supplements.

        • Isiris March 27 at 4:58 pm

          Shawn, since our food grown by large farms has depleted the top soil, we don’t get all the nutrients that should be in our food so we, unfortunately, need supplements.

      • Emerald February 15 at 12:49 am

        Zinc and calcium also compete for absorption.

        The study has shown that, during zinc supplementation, the intestinal absorption of calcium was significantly lower during a low calcium intake than in the control study, 39.3% vs 61% respectively, p less than 0.001. However, during a normal calcium intake of 800 mg/day, the high zinc intake had no significant effect on the intestinal absorption of calcium. These studies have shown that the high zinc intake decreased the intestinal absorption of calcium during a low calcium intake but not during a normal calcium intake.

    • Maureen January 14 at 5:36 pm

      Lots of zinc in oysters. Also in beef, lamb, sesame seeds, pumpkin seeds, lentils. Do computer search of “zinc rich foods” for a full list.

    • jim rose January 24 at 8:56 am

      yes, I generally add a 50mg tab of zinc gluconate (sometimes 100mg) to my eggshell mixture…..the calcium buffers the high acidity of the zinc and the two seem to assimilate WELL together for me. I workout in the gym later that day like a madman….the calcium really seems to be good for me but as I stated before, I cannot eat calcium eggshells more than 2-3 times a week……too much and it stresses my kidneys and I get ‘night shakes’.

  24. Sharon Askew April 23 at 8:32 am

    I think it may be better to steam the egg shells instead of boiling if you want to kill pathogens without leaching out the calcium and minerals.

  25. Angela Miller April 5 at 3:41 pm

    Again, do your research:)
    It’s not calcium carbonate. So funny how ignorance can get ya every time.
    Agree with the hate comment. People that lash out at others in that way are generally just unhappy with themselves.

  26. Jen March 31 at 12:09 pm

    All that hate, wonder how healthy it is.

  27. ann beman February 23 at 9:34 am

    Hi Genevieve Im so happy reading this! Ive been doing the same for years. I always feel like a bit of a weirdo whenever I tell anyone about it, every though, when ever I do, people always find it interesting.

    Im a gardener – grow my own veggies – and an avid composter – extreme home composting 😀 But egg shells take forever in the compost bin and Im mean, jeez, why wait?! If you pulverize in now, your garden can be gobbling up the calcium+ today! Also its really good for the worms in my worm-composter – scours their gut.

    Anyway, one question … I understand the need to kill potential pathogen but is the boiling really necessay? Why not just bake? How long how hot would be safe, do you think? Just trying to streamline the process here — we eat a LOT of eggs!
    Anyway, thanks for writing this :)

    • Genevieve June 13 at 11:52 am

      You probably could just bake if you get your eggs from a pure source. Boiling also helps to separate white film. Totally up to you :)

      • Marcus July 15 at 3:51 pm

        Hi Genevieve

        If the eggshell I use are from hardboiled eggs I think I could skip the safety steps if I peel them soon after boiling. Do you agree?

        • Rachel February 12 at 2:23 am

          That makes complete sense to me Marcus! And like other comments mentioned above, you can save the boiled water from hard boiling your eggs and when it cools down to room temperature pour it on your garden (tomatoes, etc) to give them the calcium that is in the water. :)

          • Emerald February 15 at 1:13 am

            Does anyone know how much calcium (per egg shell) is leached into the water when boiling? Prefer to drink the calcium-fortified water rather than consume the egg shells, but would like to know how much calcium can be obtained from the water used for boiling the shells or eggs.
            Thank you so much in advance for your help.

    • Angela Miller April 5 at 2:01 pm

      Monika-have you done your research, she is not advocating the grinding and injection of stone. She has resources listed so that you may be more informed.

    • Sue October 6 at 8:37 am

      Some calcium you can get in the store are from oyster shells. I would think they are harder to digest than egg shells. Am I thinking right?

    • Maureen January 14 at 5:39 pm

      Read up on Vitamin K-2. It keeps calcium were it should be, in teeth and bones, and out of heart, arteries, and other tissues. Japanese eat tons of it in Natto. The dutch have high levels of K-2 from gouda cheese and pastured egg yolks. Some say Japanese people have smoother skin into old age from high K-2 levels.

  28. 21leftcenter January 21 at 1:21 pm

    This is brilliant! I sneak this into my husband’s breakfast every morning! He has no clue!

  29. susan January 17 at 10:02 am

    Hi – very interested to read of using eggshells this way – went to copy the url into my browser and it automatically added other stuff added at the end of the url, which led to a ‘no page at this address’ result.

    Only when I shortened it to just did it take me there.

  30. rebekah December 26 at 6:06 pm

    Hello! Great info here. I have chickens and I think there is soy in the laying pellets that I gave them last week but this week I bought them scratch. Have to check to see if it contains soy. So what if they have had soy in the past, are the egg shells still not beneficial to eat?? If I wait a couple of days/weeks after them being on a non soy product, will this insure that soy is not in their eggs?? Please help answer this because I just found out I am pregnant and I really want to start eating my egg shells for the calcium and now I am not so sure because of the soy in their food….Please help!

    • Sue22 December 28 at 8:04 pm

      Keep looking for some non-GMO chicken feed. Scratch, I hear, does not contain all the nutrients chickens need. It’s like fries and potato chips to us — a nice snack and a little something on winter afternoons to help them stay warm at night. I was lucky enough to find non-GMO layer feed from a local farm on Craig’s list — only half the price of non-GMO feed at the feed store, which has Cargill labels. (You want to stay away from supporting Cargill if you can.)

  31. Norma December 25 at 7:04 pm

    if we do not wish to digest it, can it be used in a lotion, salve, scrub? thanks for the ideas

  32. Shelly December 14 at 2:05 pm

    I missed the step of boiling the eggshells.Oops. I put the eggshells in my food processor and ground them up. Didn’t make powder but very tiny pieces. I put 2 tablespoons in my shake every morning.
    Do you think I’ll still get the same benefit from doing it this way.
    Thanks for all your helpful info!!

    • Steve April 12 at 7:46 am

      could have bad bacteria from not boiling. boil next time :)

  33. December 4 at 10:46 am

    Hello just wanted to give you a brief heads up and let you
    know a few of the pictures aren’t loading correctly.
    I’m not sure why but I think its a linking issue.
    I’ve tried it in two different internet browsers and both show the same results.

  34. Katie November 22 at 8:01 pm

    Mike you don’t have to believe. Go take a hike. If you are a rocket scientist, you are a pretty stupid one. The rest of us will be happy to try it. You probably make your living selling expensive, ineffective OTC supplements.

  35. Rea November 20 at 5:24 am

    DOH ! I do this for our birds, I don’t know why I didn’t think to do it for us.

  36. Lauren November 16 at 2:04 pm

    Ummm I think they mean pasture as in the opposite of caged….I.E. free range. Free range chickens are raised in a pasture- which is a pen that is made up of fencing used for farm purposes so that the chickens while still contained, have plenty of room to roam and live normally vs. being cooped up in cages in substandard miserable living conditions.

  37. Juniper November 9 at 9:37 am

    start your research here: and follow related articles links. Int J Clin Pharmacol Res. 2003;23(2-3):83-92.
    Eggshell calcium in the prevention and treatment of osteoporosis.
    Rovenský J, Stancíková M, Masaryk P, Svík K, Istok R.

    National Institute of Rheumatic Diseases, Piestany, Slovak Republic.

    In this paper the most significant biological and clinical aspects of a biopreparation made of chicken eggshells are reviewed. Eggshell powder is a natural source of calcium and other elements (e.g. strontium and fluorine) which may have a positive effect on bone metabolism. Experimental and clinical studies performed to date have shown a number of positive properties of eggshell powder, such as antirachitic effects in rats and humans. A positive effect was observed on bone density in animal models of postmenopausal osteoporosis in ovariectomized female rats. In vitro eggshell powder stimulates chondrocyte differentiation and cartilage growth. Clinical studies in postmenopausal women and women with senile osteoporosis showed that eggshell powder reduces pain and osteoresorption and increases mobility and bone density or arrests its loss. The bioavailability of calcium from this source, as tested in piglets, was similar or better than that of food grade purified calcium carbonate. Clinical and experimental studies showed that eggshell powder has positive effects on bone and cartilage and that it is suitable in the prevention and treatment of osteoporosis.

    • Mindy R October 16 at 9:55 pm

      Thank you for this….I love details!! :)

  38. Greta November 6 at 5:22 am

    I had pet birds and it was suggested by books to feed them my leftover eggshells for calcium. I give my houseplants the water from the boiled eggs. The birds loved it.

  39. John November 4 at 11:58 pm

    Hello all, thank you all for shearing, thoughts,wisdom,knowledge. This article and comments has touched me deeply. Normally I do not comment in open fourms like this but I would like to give this a try. The memories of growing up with nature, growing vegatable, fruits, expanding horticulture, boy scouts, ect ect. Become better to understand there is a true natural balance in everything we touch, smell, taste, see, hear. It takes networking with others like this to repourpose egg sheels that becomes full circle renewable resouroes that comes back to us 100 x over. Like using ground oyster shells for pourtry scratch in egg production, and in Koi ponds to balance slow release calicum to reduce acid levels. Ill will stop before i ramble on. Thank you John

  40. Lisa November 2 at 10:48 pm

    I’m not sure why you feel that article “balances” this one. It says that it’s best to use natural forms of calcium and to make sure you are getting enough of the other vitamins and minerals that are needed to work with calcium in the body.

  41. MARLENE JONES October 30 at 7:46 pm

    Your remarks on magnesium are so true. My husband has a true magnesium deficiency. I say true as it is not brought on by alcoholism or drinking at all. He had a severe physical problem about six years ago which the doctors could not figure out. He had been on the floor vomiting and his eyes were rolling around in his head. I called the ambulance. They arrived and took him to hospital. They thought he had a stroke. Then they thought heart attack. Sent him to a different hospital in a nearby city. They sent him to the neuro floor. Again no one could figure out why his eyes ere rolling around in his head. Had him hooked up to ekg machine. It showed extreme arrhythmia. They checked his magnesium levels after all other mineral and vitamin levels were checked. Said there was NO magnesium left in his system. Put him on a drip for two days. It took that long to get it to normal range. In the two days in the hospital he was hallucinating, talking to people who were not there, made no sense in phone calls and kept having the arrhythmias, even tho’ he had no heart attack or any known heart problems. This just shows you what the lack of magnesium can do to the body. It works with the muscles to keep them running smoothly. The deficiency persist in my husband to this day, although now they have him on a two high blood pressure meds which keeps it from dropping really low. Oh and doctors get very little education on nutrition in medical school. That is the least part of their education. They don’t feel this is as important as the rest of their studies.

    • Emerald February 15 at 1:55 am

      My leg cramps went away when I started taking magnesium supplements to help with calcium absorption. Just cannot take too many as it upsets my stomach. Doctor reminded me about “milk of magnesia”.

      So true about your comment re: doctors not being trained in or caring about good nutrition. Have several doctors in my family and all they care about are Rx medications — even for themselves. Keep reminding them to change their diets instead of relying on medications (lots of negative side-effects over the long term), but they think they know best. Thankfully, personally not on any kind of Rx medications. Truly believe in good nutrition and natural supplements.

  42. Debbie Thomas October 27 at 11:08 pm

    Calcium is also good for your skin. I use eggs in my soap to get proteins – remember egg facials? I am going to try to add the calcium from the shells and see how much I feel the difference. Great Idea! When I do it I will post the findings on Bubble Love Sedona Soap on FB – Thank you

  43. Dee October 17 at 9:46 am

    Great info! Just thought I’d add that you could also use this powder to sprinkle around tomato and clematis plants as both love calcium. I will also use it in the natural toothpaste you have posted.

  44. Kate October 12 at 11:42 am

    It’s a waste of time, energy, and filtered water to boil them before putting them in the oven. They will get pasteurized in the oven just fine :)

  45. Norma October 10 at 11:49 am

    I would think that boiling the eggshells will take out the calcium. Sort of like when some gardeners will cool the egg water from boiled eggs to water thier plant that need calcium.

  46. skookem October 8 at 12:22 am

    Is this calcium absorbable?

  47. Soni October 7 at 1:25 pm

    Wondering….can I just add the powder to my tea and/or coffee in the morning?

    • Genevieve October 7 at 8:15 pm

      You could try. It’s a little chalky though.

  48. Chris Lion October 7 at 12:39 am

    Just a friendly note… All people and especially those suffering from kidney disease should know their calcium levels. Please don’t consume extra, since it can prove to be damaging for your body.

    • Sara Jo Poff October 9 at 5:28 pm

      This is conventional medical thought and it is false. Just because our body secretes excess calcium does not mean it is taking in too much. The problem is a diet full of refined sugars and other processed foods that cause our body to draw out calcium in order to balance the acidity of the sugars. So we shouldn’t prevent people from getting calcium (that they are most likely deficient in) but to stop consuming diets high in refined sugars that suck the calcium and other essential nutrients out of our bodies!

    • Amanda w September 9 at 5:45 am

      People with kidney disease have to watch calcium consumption because their bodies cannot get rid of calcium through urine as they do not make urine any more. Some people even get a calcification of normal tissue and blood vessels because the calcium builds up. Dialysis does not rid the body of all excess minerals like the kidneys do.

  49. Sarah September 6 at 10:25 am

    Bravo on the long post, but your “you’ve swallowed the Kool-aid” comment proves that you are either naive, young, or both. Do you personally know any doctors? Do you have any doctor friends…seriously?? Well, I do. One D.O. Who is very bent on natural living as a means of both preventing and treating illness. I know a M.D. who is both an ER doctor, as well as running his own holistic health clinic. I met him when I worked in mobile communications and he was specifically in search of equipment that was low EMF. Please stop generalizing human beings; we all, regardless of what we do for work, have interests- have you considered that physicians might possibly enjoy reading the same things you do? While I agree that many doctors may be inflexible regarding changing information, as well as there existing some who will sell out just for the extra money from pharma “sales”, many actually get into this line of work to help people…it’s actually true. The idea is to be knowledgable and be in charge of your own health; by you “not trusting” ANY doctors, you have yourself “drank the kool-aid”.
    You don’t trust doctors…until you need one. And everyone does at some point.
    My advice- stop the generalization and find some type of physician you trust at can back up your knowledge.

    I don’t oppose making your own egg-shell calcium, I simply stated that it would be wise to discuss sumplementation with someone who is both familiar with your personal health profile, as well as someone who knows well about how it could possibly interact with other supplements. You cannot possibly think its okay to get all of your health advice from blogs?!? (no offense mama natural!)

    • savagek247 January 21 at 7:12 pm

      Agree completely. I had a friend that was a pharmacy tech and the best advice she ever gave me when it comes to self dosing supplements without knowing your true levels – potassium is what they use for euthanizing animals and for death row inmates. It stops the heart in large doses. Something we get from eating bananas. The point of this is that not knowing your own levels can be dangerous. Calcium and magnesium cancel each other out. So while calcium supplements can be good for some, magnesium is better for others. I am one of those that needs more magnesium, thanks to my coffee addiction that depletes magnesium lol. Keep in mind that balance is the goal, not overdosing on every mineral and nutrient known to man. Plants are the best example of this. Why we don’t use the same advice for our own bodies, I’ll never understand lol.

      • jim rose January 24 at 9:12 am

        agree here. i’m a magnesium person but I only use it in small amounts on the days I don’t supplement with calcium…that way both have a chance to assimilate but I take days off from both too…my body needs both elements but my system can only stand so much so I’ve learned to separate them. zinc too is important for me

      • Emerald February 15 at 2:15 am

        Thanks so much for info re: magnesium and calcium competing for absorption. From previous readings, thought magnesium was needed for calcium absorption. Only after reading your post did I do further research and found that in fact, they do compete for absorption! Really surprised and very upset as I was taking magnesium and calcium TOGETHER for the past few years! What a waste!
        Wish my doctor had warned me about it, but don’t think he knows.
        Calcium supplement I take also has magnesium (plus D3 & K2) in it.

        Copy and paste from article:

        Magnesium competes with calcium for absorption and can cause a calcium deficiency if calcium levels are already low.
        It is a good idea to take a B vitamin complex, or a multivitamin containing B vitamins, because the level of vitamin B6 in the body determines how much magnesium will be absorbed into the cells.
        Since magnesium is excreted by the kidneys, people with heart or kidney disease should not take magnesium supplements except under their doctor’s supervision.

        Very good article with dosage, drug interactions, magnesium from food, etc:

        Source: Magnesium | University of Maryland Medical Center

  50. Nick Beck September 2 at 9:55 am

    Thank you for the information. When I was a kid I watched my aunt crush up her eggshells and baked them for a few minutes in the oven. I asked why she did that. She said that she fed them back to the chickens she was raising to replenish some calcium that they need and it helped them produce better eggshells. It all made since to me then as well as now.

  51. Keith August 26 at 10:21 pm

    Don’t be so ignorant, Sarah.

    • Julia January 11 at 1:09 am

      Dear Sarah, It isn’t that “all doctors” are ignorant to nutritional preventative health care. It’s that the the system is designed to weaken the individual’s well-being and too many cogs in the system (doctors, pharmacists, etc.) facilitate the profit guided system, at the cost of better living of their patients, in exchange for personal profit. These issues are never all or nothing, there is always grey area. The problem of ignorance/avoidance, among medical professionals and the pharmaceutical establishment, of the benefits of nutritional health care vs. invasive/dangerous procedures is real and it is very important for us to self educate because of this failing. We should discuss the issue with open minds. Attacking each other is a symptom of the problem. Best Regards, Julia

  52. Del Rene August 26 at 4:44 pm

    Thank you for taking the time to explain this process. I love homade wellness receipes. Do you have any other ones to offer? What do you know about orange peal ryne. ( if that is how you spell it..? Its not everyday a person uses it in a sentence :)

    Thank you,

    Del Rene :)

  53. Olivia August 24 at 2:56 pm

    Remember Calcium and Magnesium need one another to work properly. Mineral balance is the key when taking any supplement. The recommended ratio of calcium to magnesium is 2:1.

  54. Alpha Delta August 18 at 2:25 pm

    I suppose if you’re paying over $8/dozen for eggs online you’d better use the whole buffalo! I’d definitely use this in a toothpaste or take it with magnesium and ACV so your body can get the most out of it.

  55. ew0054 August 11 at 6:52 pm

    Thank you for making this information available. I am goign to begin saving my egg shells and try this!

    I think the Salmonella scare of eating raw egg yolks is over-hyped (I have been eating every day never got sick), but the concern for the shells is very real because of the direct exposure.

    Good tips to sterilize with boiling water and dry with oven.

  56. Keith Evans August 10 at 12:15 pm

    If you are relying on milk for calcium there are a couple of things you should be aware of. #1 The calcium content of milk (unless artificially supplemented) depends entirely on the diet of the cow, and modern dairy practices do not allow grazing the animal’s natural foods that contain calcium, ie green grasses. To raise butterfat content and facilitate industrial conditions dairy cows are fed mostly corn and soy meals, which are low in calcium. #2 Metabolizing butterfat requires calcium, as each fat molecule binds to two calcium molecules in the process. This means that drinking commercially produced milk could actually deplete existing calcium from your body, usually from the teeth and bones, or lock it into fat reserves.

    While I agree that egg shells are an excellent source of calcium, I question the availability of the mineral to the body in it’s raw form. I would suggest dissolving the ground egg shells in apple cider vinegar or lemon juice. This creates a form of calcium citrate that makes more of the calcium available to our digestive systems and diminishes the irritating effect the raw shells have.

    • Analita Kruse August 16 at 10:03 am

      Wonderful specification and RIGHT ON!, Keith! Thank you!

      • BJ October 8 at 12:55 am

        Keith you are so right about milk. Would like to add to yours a fact that cows milk was meant for baby calves. Also with corn and soy now being GMO and dangerous anyone who continues to add milk and dairy products to their diets is asking for more health problems. Also I would like to add that I have been misdiagnosed by doctors all my life and I am a grandmother. Since I started learning about eating healthy when in my mid 20’s I have enjoyed much better health. I am in my 60’s now and do not take or need any prescription drugs. My husband who is my opposite and visits a doctor 4 times a year is now on 3 drugs and is suffering bad side effects and can no longer sleep at night which is making him miserable and hard to live with. So no I don’t trust doctors except for broken bones and have kept myself healthy for years by reading alot of books and blogs and taking charge of my own health. I am sure alot happier and healthier than alot of people my age including my husband.

    • a khan January 6 at 11:05 pm

      a khan yes–all of the receipts i’ve seen cal for acid neutralizing — just remember you have other choices–since a lab spill event in college i am allergic to vinegar, & i really dislike the taste and harshness of lemon.
      one better (to me) choice is lime. i suppose grapefruit might work but there are other problems with it. same with high acid tomatoes. there are a number of other safe sources of sour=acid–sour cherries really are sour-like wise apples, grapes, ant one of the sourest- rubarb.
      thank you-arthur

    • jennifer November 29 at 4:15 pm

      Here is a fantastic article on a variety of ways to get the calcium out of eggshells, including making calcium citrate with lemon juice (this is what I do… put the powder in lemon juice, wait 36 hours as it bubbles, and voila). I use a magnesium spray oil on my skin at the same time, and go out in the sun daily (live in Southern Cal)… not sure how to get natural vitamin K though.

  57. John June 9 at 9:45 am

    hello, can you please tell me what coffee grinder that you use? How long have you owned it? I use one and it doesn’t last very long when I use eggshells. Thanks for your help.

    • Julia December 30 at 7:31 pm

      I’m imagining using my masticating Omega juicer. I already grind coffee with it…. any thoughts?

    • Jeanne January 10 at 8:21 pm

      I use my Magic Bullet

    • Jeanne January 10 at 8:26 pm

      Seriously, this is the first and last time I will come to this site. I have never seen such mean and hateful people in my life…over egg shells for goodness sake. I sure hope your children are not reading this ! Good bye !

      • jennifer November 29 at 4:16 pm

        Too bad, because there is some amazing info here that can be helpful for people. In any case, negativity is in the eye of the beholder. Have a sense of humor!

    • Brenna October 17 at 2:35 pm

      By using a mortar and pestle you can reduce the shells to a very fine powder that has no chunky or sharp bits. Just grind as normal and then if the bits are not small enough use the mortar and pestle until the consistency is to your liking.

  58. teresa May 21 at 11:29 pm

    i have always used the water that i use for hard boiled eggs to make other things, like broth or used it for when i am making rice or anything that requires water because i can see the difference. by that i mean, some of the calcium leeches into the water and then i use it for cooking next time i need water.
    my nails and teeth show it.
    so i have no problems by keeping/storing the used egg shells and then grinding them down and using them in other things. can’t wait to see what happens when i add it to my bread.

    • Dena October 19 at 11:54 pm

      Thank you Teresa for the great idea of using the water from hard boiling eggs! Great idea that I’ll start using.

  59. Julie May 17 at 7:23 pm

    Years ago, when I was expecting my twins and was lactose intolerant, my OB/Gyn told me if I didn’t get more calcium, he would make me crush up egg shells and bake them into muffins. I was horrified! Now I think, “Cool!”

    And the best way to absorb magnesium is to run a hot bath, pour in Epsom salt, light candles, put on soft music, and loll around in the tub. :) It’s also the best way to greet your husband on Friday evening.

  60. wanda March 4 at 7:33 am

    We have always fed the shells back to our chickens and they produce the best eggs and their shells are very thick. We do bake them first and then just crush them but we don’t have to pulverize them..I think I will def try this my husband and I have a lot of joint problems ..hoping this helps.. (ran across another link that showed how to use orange/lemon peels to make vitamin C by just drying out the peel and then pulverizing them sounds like I need a coffee grinder! ) Thanks for the post!

  61. tara February 22 at 6:39 pm

    What if you OVERCOOK the egg shells?? I left mine in oven after baking at 200 degrees but then my husband jacked oven up to 350 degrees and did not know the egg shells were still in there! The powder is slightly brown color with a cooked smell. Not unpleasant at all but wonder if the calcium is no longer viable?

    Also, I did not boil the shells before baking them, is that okay?

    • Genevieve February 26 at 10:56 am

      Hi Tara,

      Unfortunately, I wouldn’t use :(. You probably are OK not boiling the shells since you’ll bake them and kill pathogens but not sure on that :)

  62. Joanne February 15 at 10:52 am

    How do you get all the egg whites off the shells? I tried making this the other day but couldn’t get all the egg white off…can I just grind it up with the shells?

    • Liz February 15 at 11:12 am

      Joanne… They are really slimey.. get as much as you can. When you boil and then bake them.. all of the salmonella (which is what you might worry about) goes away in the boiling process. (you will see little white bits at the top of the water that will rinse away. Then you bake them and that second heating process kills even more pathogens.

      If you are really worried and doing them in huge amounts, you can put them in tiny jars and boil the jars like you would a jam or jelly and that will seal the jar until you are going to use it. That will once again heat treat the product inside and kill more pathogens, while preserving it with an airtight seal. When you open it up a way to keep it fresh and away from bacterias is to keep it in the freezer. It is dryer than the fridge and pathogens are less likely to form again. :)

      Good luck!

    • Genevieve February 18 at 1:23 pm

      I do as best as I can. You might actually be seeing the membrane which also contains minerals so good to include.

  63. Liz February 14 at 5:14 am

    We have done this for years and supplemented our garden soil. It adds much needed nutrients to the soil. We save the shells (and coffee grinds as well!) and till them in to the ground.

    We also spread rings of egg shells around the base of plants. It prevents any slugs from crawling to the plants. They eat the bits of egg shells and die! DON’T TOUCH MY PLANTS! :)

  64. Shelly L February 9 at 11:27 am

    I made it as suggested…it is a bit too crunchy for sprinkling on your breakfast…at leaset mine was. I plan to grind it again with my Mortar and Pestle.

  65. devora January 22 at 1:26 pm

    If this needs to be combined with magnesium – then how would you do it?
    How would you put into chicken soup?

    • Emerald February 15 at 2:29 am

      Some articles say magnesium (plus D3 & K2) are needed for absorption of calcium, but just found article from U of Maryland saying magnesium and calcium compete for absorption. Need to do further research on this myself.

      Re: chicken soup — you can probably put the egg shells in the soup. I put eggs in my chicken soup to make hard boil eggs, not knowing about the benefits of calcium leaching from the eggshells before reading this article today. Now would like to know how much calcium each egg/shell is leached into the water.

  66. Clarice O'Brien January 19 at 6:41 pm

    Hi Dennis, I am not sure about whether or not the eggshell powder dissolving in liquid or not, having never tried it myself, maybe others will know. But one thing you can try if you have never, and it’s so easy if you don’t mind eating it, is black strap molasses. It has to be black strap, not just plain molasses. It is available in many places. In a small serving (1 Tb.) it has a good amount of calcium, iron, and I do believe it is also a good source of magnesium and other important nutrients. I like to drink it in a glass of warm milk, it is very yummy. Another way is in tea as a sweetener, or just in hot water, many ways to consume it in liquid form. I buy it in bulk and keep it in the fridge. Hope this helps, wish I was more knowledgeable about the eggshell powder.

  67. Nancy January 18 at 9:30 am

    Have been grinding up egg shells to a fine powder for years and putting at the base of my plants. Water in well and making it bioavailable to them. Makes them stronger and better able to resist disease.

  68. Linda January 18 at 6:11 am

    I think I would make capsules filled with the ground egg shells using veggie capsules, or mix it in a smoothie.

  69. Donna January 18 at 12:41 am

    When I boil eggs for egg salad I save the water the eggs were boiled in. I cool it and use it to water my plants. I clean and save all my egg shells, crush them small and put them in the soil that grows my tomatoes….. I’ve never contemplated eating them myself… something to think about for sure.

  70. Pamela Lukasek January 17 at 10:10 pm

    This is not totally on point but I found that if I put a whole egg in the soil when I plant tomatoes, they give me wonderful tomatoes that are bigger and better. Also, raising Chickens is very popular and not very hard to do, I have a flock of eight and I get about five eggs a day. I know for sure that they are fresh. Smiles

  71. Clarice January 17 at 9:59 pm

    I don’t eat a lot of dairy so I get my daily calcium from black strap molasses. Just a tablespoon can give you about 20% daily value of calcium, not to mention a good source of iron and many other nutrients. But I’m going to do the eggshell thing soon as well.

  72. Karen Pruneau January 17 at 9:54 pm

    Great now I don’t feel so weird. 14 years ago I was pregnant and refusing to drink milk as my first child had a milk allergy and that’s where I got my extra calories from with him. But with the second child I found myself munching on eggshells even when I was grossed out by the idea.

  73. Sarah H December 22 at 5:47 pm

    I’ve taken to putting 1/2 tsp of eggshell into a shot of kumbucha. The kumbucha reacts with the eggshell and keeps it in small clumps (easy to swallow) so I’m not trying to down eggshell slush. Make sure to put dry into wet and not the other way around. After I drink the first shot I rinse the glass with a second shot of kumbucha to get all the shell goodness. I figure the extra acid from the kumbucha will help me digest the calcium better anyway.

  74. Tristi December 22 at 10:15 am

    Im in the process of tapering off methadone. I juice every morning, eat very healthy, eat kefir grains and take apple cider vinegar. Im so happy you posted this because the methadone really messes with your bones and teeth : ( and my muscles always ache. Im going to do this! I hope I feel a difference, im sick of my body always aching. Thank you!

    • Gi April 29 at 12:47 am

      Most likely You need magnesium not calcium. Magtein is an easily absorbable form of magnesium. Good luck. Also depending on your metabolism some of the above that you’re eating might not be serving you at the moment.

      • mrtee August 4 at 4:33 am

        I agree one needs magnesium more than calcium. As for magtein which is magnesium L- Threonate it was invented by researchers at m.i.t. It is the only form of magnesuim that crosses the blood brain barrier.It’s been clinically tested and it not only raises mag. levels it increases neural function in the brain, In other words it increases your abilities to learn.As far as calcium goes the have found that supplementing W/K vitamins prevents the calcuim from leaching out from your bones and going into your arteries and all different locations where it should’nt be. So all the extra calcuim supplementation is doing not helping the average person. Most mainstream doctors aren’t aware of these facts and according to some researchers you cannot get enough of the k-3 or k-7 which has a longer half life from your k-1 supplement. They have research showing a reversal of cardiovascular disease but it does not happen overnight it was a three year study. But the only lifestyle change was taking the k-3 vitamin

  75. AJ December 19 at 7:51 pm

    You are absolutely correct, too, Teri…..the only soy one should consume is fermented soy.

  76. Elly December 19 at 3:33 pm

    Great idea!
    You also need to ensure that you have enough magnesium otherwise the body won’t absorb calcium properly. Many people are magnesium deficient. Easiest way is to take Mag Phosphate homeopathic tissue salts (supplements can be too strong and upset your stomach).
    I have used egg shells on plants before.
    Great post, thank you.

  77. nicole December 19 at 3:15 pm

    I may have missed it reading above- but what if you hard boil eggs first- does that change the ability to use the shells for calcium? thanks,

  78. Leslie December 19 at 3:02 pm

    I rinse and crush my eggshells and throw them around my plants. I also toss my leftover teabags in my garden.

  79. Holly December 14 at 10:15 pm

    Chickens seriously ARE cannibals. :) They’ll eat ANYTHING. They love meat of all kinds, especially chicken meat! Yes….I raise chickens. :)

  80. maria November 2 at 5:47 pm

    How long can I let the shells sit after cracking the eggs before cooking them for this process? A couple of days? or does it have to be right away?/

    • Genevieve November 4 at 11:48 am

      I just used up my eggs as normal so it took me about a week to have a dozen shells. Just put used shells back into egg carton and store in fridge.

  81. Dallas October 30 at 10:03 am

    I made this and used a Magic Bullet knock off to process the shells but the powder doesn’t dissolve in water, it all sinks to the bottom because the grinds are too large. What can I use that will make it finer? I have been encapsulating it for now but that is tedious.

    • Dina B December 20 at 6:49 pm

      Dallas get a coffee grinder, thrift store, yard sales or watch the Sun. ads.

  82. Melissa October 17 at 8:00 pm

    Awesome info! We have organic, soy free chickens and I didn’t realize how much I can do with the shells. I was just composting them. Thanks for the tips.

  83. Carrie October 4 at 3:33 am

    I live in Hong Kong and the best I can buy is organic, pastured and free-range eggs. I’ve emailed the company in New Zealand, they said their chicken mostly are fed on grass but are supplement with soy (and other stuff). Is a little bit of soy okay? Or absolutely no no for eating the egg shell?

  84. Alicia October 2 at 6:55 pm

    I don’t have my own chickens but the farmer I get my eggs from are pastured, organic, no soy or gmo and only $3.25/doz. Love them. I recently did this and added it to my remineralizing tooth powder.

    • Genevieve October 2 at 8:48 pm

      Lucky! That’s a great price for eggs!

  85. Kat October 2 at 2:15 pm

    OH and – do I need a dedicated coffee grinder for this? I don’t want my husband to be upset for ruining his coffee. :)

    • Becky October 2 at 6:07 pm

      I actually just started making powdered eggshells a few days ago. I tried a blender and it really doesn’t work and I have a high-powered Blendtec. I have read about people using rolling pins and other things. But I figure, the cost of a calcium supplement–you’ll be saving a lot of money with eggshell calcium. I just bought a $15 coffee grinder, even though I don’t drink coffee. You may just want to buy a second one…

      • Clarice January 17 at 10:08 pm

        We use a spare coffee grinder for whole spices, could also use for egg shells.

    • Dina B December 20 at 6:39 pm

      Kat, I have been using eggshells in my coffee for 50 years. I just put one or two shells in the grinder when grinding my beans for 1 pot of coffee; it smooths out the bitterness. It Won’t ‘ruin’ his coffee at all.

  86. Kat October 2 at 2:15 pm

    How much does a dozen eggs make? How best to consume? Does putting them in stock like several people mention up the calcium content of the stock?

    • Genevieve October 2 at 8:50 pm

      A dozen eggs makes about 1/3-1/2 cup of powder. Yes, I would imagine putting the shells in stock would only up your mineral content, particularly calcium.

      I use our coffee grinder and just clean well. Since you only need to make every once in awhile, not a biggie. It grinds them well.

  87. Alison October 2 at 1:51 pm

    I make egg shell water and drink about 1/4 cup a day. This is another great way to do it too!

    • Emerald February 15 at 2:34 am

      I would also like to drink the calcium-fortified water. Do you know how much calcium you can get from each egg or shell that is boiled?
      Thank you in advance for your help.

  88. Ashley H October 2 at 1:48 pm

    We’re raising soy-free pastured egg layers- they should start laying any time now. I’ll let you know when we have extra eggs to sell. :) In the mean time, I’m totally making this!

    • Genevieve October 2 at 8:47 pm

      You go girl! I would LOVE to buy your eggs :)> You’re doing a great service by raising chickens the right way!

  89. Natalie Dean September 27 at 12:19 am

    This is great! Thanks so much for the tip and recipe. I’m a nursing mother to my 2 1/2 year old and since having her I’ve had serious muscle soreness- wondering if my calcium levels aren’t too low due to all the breast feeding?? I hope to find results with this and will let you know! By the way, is the water/shell concoction flavorless (I hope)??


    • Karen September 27 at 1:31 am


      • Genevieve September 27 at 7:04 am

        I hear you Karen! The great thing about eggshell calcium is that it also includes other micronutrients, the way nature intended. I also recommend daily use of a magnesium oil. XO

    • Genevieve September 27 at 6:59 am

      Hi Natalie,

      Yes, prolactin, which stimulates breast milk, also depletes calcium so very important for a nursing mama to get enough calcium.

      There is a very faint flavor. I simply mix the shells in a 1/4 c. of water and chug down. Don’t taste a thing that way.


  90. Cynthia September 26 at 12:09 pm

    Taking eggshell calcium gave me charlie horses in my foot, so make sure you are getting enough magnesium as well.

  91. Megan September 26 at 7:09 am

    My family has pet ducks and we did this for them since the females have calcium problems during laying seasons. Never knew it was ok for us to eat too.

    • Genevieve September 27 at 7:00 am

      Cool :) It even works with oyster shells too but harder to get!

      • Kristin October 3 at 8:24 am

        Realy? That’s great news for me! My dad owns a wholesale oyster business, so I can get all of the oyster shells I want for FREE… And I can get them already in a powder form, which is awesome, because it would be extremely hard to get an oyster shell to a “dust” form… They are very hard and very thick!
        Only one question though… are oyster shells as effective as egg shells?
        I need to make sure I’m getting plenty of calcium, I don’t consume even half of the calcium I should.

        • Rae January 17 at 10:21 pm

          I don’t know in humans, but we give oyster shell to the chickens, then their shells are harder and thicker. And I have seen oyster shell calcium supplements.

          • Kathy Ebert January 26 at 3:40 am

            Yes, oyster shell is a good way to get calcium and is safe also. For years I’ve been buying oystershell calcium at CVS stores, its the best I’ve found.

        • Samantha March 3 at 4:50 pm

          You should start a business with the shells :)

  92. Mindy September 25 at 3:22 pm

    Awesome, I am definitely going to try this! I am always running low on calcium.
    By the way, I’m sure many girls here would love to see a video on what started you on your natural living kick all those years ago. Especially the food! I know many of us have started living naturally because of a health crisis, where we had to change or risk getting sicker. That has been my experience. It would be interesting to hear!

    • Genevieve September 27 at 7:03 am

      Thanks Mindy! Did you see my video on 6 tips to kick sugar? That kinda goes into my “come to Jesus” moment. I also am coming out with ebook very soon that goes into this as well. XO

  93. Monica September 25 at 1:47 pm

    Awesome! I think I’m going to add this to tooth powder instead of buying the supplements to grind up!

      • Monica October 10 at 5:43 pm

        I’m especially excited because a farmer sells “real” free-range, gmo-free eggs for $2.50 a dozen! That’s cheaper than normal eggs at the store! The yolks are so orange, they’re beautiful!

        • Rachel February 12 at 2:27 am

          That is so true Monika. They’re much brighter and darker yolks and far more cheaper than even the lowest grade of eggs in a store. I love living near all these farms. And for anyone else looking for local farm fresh organic eggs in your general area, just try googling “farm fresh organic eggs *city/state*” you’re in and i’m sure you’ll find a spot. :) Happy egg hunting!

    • Emerald February 15 at 2:41 am

      Thanks so much for the link, Courtney. Very helpful.
      Would you know how much calcium each egg provides in the eggshell-water? Prefer drinking it to consuming the eggshells. Thank you in advance for your help.

  94. Cyndi September 25 at 12:00 pm

    Oh weird!! I never knew! It might take getting past a lot of mental blocks to do that though… seems kinda gross! But awesome that God created the world with abounding resources all around us!

    • Genevieve September 27 at 7:04 am

      Very cool indeed. You can also do with oyster shells!? A great, inexpensive way to get in some more minerals.

      • Vera October 5 at 12:37 pm

        You are right! In fact, because producing an egg takes a lot of calcium from the chicken, oyster shell is often ground up and mixed in with the feed. Chicken handlers will examine the shells and if they are too light (for brown egg producing chickens) or too thin oyster shell is given to help the chicken replenish this supply. :)

    • Adell March 7 at 8:57 am

      I purchased a dozen of organic eggs from Kroger’s brand. These eggshells are brown. Is this okay to make calcium from? Thank you so much.

      • Rachel February 12 at 2:24 am

        I think that brown organic eggs are probably the best. Their naturally brown when they come out of the chicken, so I think their okay, but it’s always good to check online in a few different places to make sure. :)

      • Tabatha May 28 at 12:01 pm

        Brown eggs come from brown chickens, white eggs come from white chickens, and there are even chicken eggs that come out grey or green according to my brother who collects from his own chickens. The color of the egg shouldn’t matter as it is completely natural. I am curious, however, if anyone has made homemade toothpaste from the egg shells and does it work as well or better than the calcium carbonate you can purchase from the store?

Speak your mind