Are Egg Shells Edible?

In this short article, we are going to provide an answer to the question, “Are eggshells edible?”, with an in-depth analysis of the benefits of using eggshells, the nutritional value of eggshells, and the risks of consuming eggshells.

Are eggshells edible?

Yes, eggshells are edible. Eggshells contain on average 90-95% of calcium carbonate crystals that have a great number of benefits for humans but it only depends upon the limit and way of consuming eggshells because this is what makes the difference.

Other than use in diet, eggshells also have plenty of uses rather than just being a waste. It plays its role as a good fertilizer as eggshells enrich the soil content as well as prove to be a good compost too. It can also work as fodder for chickens and birds.

Powdered eggshells are one of the most effective and direct sources of calcium. The right way of eggshell consumption can fulfill daily calcium requirements in the form of dietary supplements.

A proper way of using eggshells:

The following procedure is used  to make sure eggs are safe for consumption

·         Wash the eggshells thoroughly and rinse them out so they are clean. After washing and rinsing, dry out the eggshells.

·         Once that is done, bake the dried eggshells for 10 minutes so their raw texture and taste can vanish.

·         Transform the baked eggshells into a fine powdery substance by either grinding, blending, or using a mortar and pestle.

·         This powdery substance is perfect for use in drinks, foods, and even a spoonful directly.

Benefits of eggshells:

It has been established that powdered eggshells in our diet prove to be the most effective source of pure calcium carbonate. Following are some of the benefits we can obtain from using powdered eggshells in our diet.

·         The high calcium content in the eggshells promotes good bone health. Though bones require a decent amount of calcium daily to nourish the bone tissue. The calcium present in eggshells not only gives the necessary nutrients to the bone cells but also promotes a healthy bone life.

·         Calcium carbonate also works as an antacid and helps in relieving digestive issues as well. Issues like heartburn, stomach ache, and incomplete digestion can also be treated and resolved through its consumption.

·         Eggshells play a vital role in improving bone strength especially in patients with osteoporosis. These patients can add powdered eggshells to their diet, as eggshells are high in calcium content and are known to improve bone mineral density which can be a monumental change.

·         Hyaluronic acid present in eggshells can be good for skin as it helps with retaining moisture in the skin and giving it a soft dewy look.

·         They may also help in the removal of toxic substances from the body. Powdered eggshells mixed in water aid in the removal of toxins from the blood.

·         Eggshells can be the most effective way of treating ulcers. Gastric ulcers can be cured by using powdered eggshells in a moderate amount.

·         Mineral content essential for dental health can also be fulfilled by eggshells. The remineralizing process requires a high amount of pure calcium carbonate which is readily provided and helps in curing cavities in an efficient way.

·         It also contains collagen and other structural proteins which play a vital role in providing elasticity to the skin.

·         The magnesium content in eggshells is also known to improve nerve and muscle function.

Nutritional Value of eggshells:

Following are the nutrients present in an eggshell;

·         Calcium carbonate

·         Magnesium

·         Protein

·         Phosphorus

·         Potassium

·         Glucosamine

·         Hyaluronic acid

Harmful effects of consuming eggshell:

Even though there are numerous benefits of including eggshells in our diet, some harmful side effects of it exist too. A few are mentioned here;

·     If eggshells are not properly crushed into a refined powder, the crunchy chunks of the eggshell may get lodged in the throat which can lead to throat issues especially can cause thoracic cavity injury due to the sharp part of an eggshell. Hence, it is advised to properly grind the eggshells to form a refined powdery substance.

·         Unwashed and non-boiled eggshells may contain bacteria of various strains, the most common being Salmonella enteritidis. This bacterial strain may lead to food poisoning and other digestive disorders.

·         As eggshells are rich in calcium carbonate so their excessive intake may cause toxicity in the blood leading to kidney stones which massively affects renal health.

·         It may also raise the risk of heart diseases to a marginally concerning level.


In this short article, we have provided an answer to the question, “are eggshells edible?”, while providing an in-depth analysis on how to properly use eggshells, their benefits on our health, their nutritional value, and side effects of consuming eggshells.


Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.