Can You Eat EggShells

In this article, we will discuss and answer the question “can you eat eggshells”, we also will tell you the nutritional content of eggshells and how to eat them. 

Can You Eat EggShells?

Absolutely, yes. Eggshells are edible and consumed as a calcium supplement.

Do not throw your eggshells! Most people always throw their eggshells after cracking the eggs. However, they may never find out what is in eggshells and whether the eggshells can be reprocessed or not. 

Eggshells are made up of 95% calcium carbonate, the remaining 5% consists of a mixture of protein and other mineral substances. When compared with the calcium content in potatoes which is only 12 mg, the calcium content in eggshells is much more.

The eggshells have a thin outer layer called a bloom, which serves to prevent bacteria from entering the shell. Under the shell, there is a thin membrane that separates the eggshell from albumin or egg white.

According to the experts at The University of Florida’s Institute of Food and Agricultural Sciences, one eggshell contains about 2,2 grams of calcium. Furthermore, According to the US National Institute of Health, the average adult between the ages of 19-50 should consume about 1 gram of calcium per day. So, if you are an adult eating fried egg with its eggshell, you will be getting almost twice the daily recommended dose of calcium. 

What Are The Benefits of Eating Eggshells?

Studies suggest that eggshells help increase the intake of calcium in the body and there is a greater absorption of calcium in the eggshells when compared to other sources of calcium supplements.  

The evidence that eggshells are good for health is supported by several clinical and scientific studies. One of the scientific studies published in 2003 in The International Journal of Clinical Pharmacology Research stated that eggshell powder is a good source of calcium and has positive effects on bone metabolism.

The researchers also noted that in clinical studies, postmenopausal women and women with diseases that cause the bone to weaken were greatly helped by consuming eggshell powder. 

This can reduce pain and increase mobility and bone density, or at the very least restrain its loss. Not only important for bone and muscle health, but it can also help relieve common issues such as heartburn, acid indigestion, and stomach problems. For more detailed explanations, click here. 

Furthermore, several studies have demonstrated the benefits of eggshell membrane supplementation as a treatment for symptoms associated with osteoarthritis and to help reduce joint pain or stiffness. However, more research is needed in this area to determine the effectiveness of eggshell membrane supplementation in joint health. 

What Are The Side Effects of Eating Eggshells?

One of the invisible but most dangerous side effects of consuming eggshells is poisoning by the Salmonella bacteria. Eggshells may be contaminated with bacteria such as Salmonella enteritidis. 

Salmonella contamination usually happens in one of two ways :

  • Directly during the formation of an egg inside the hen
  • Indirectly when Salmonella contaminates the outside part of the shell and penetrates through the shell membrane.

Make sure your ready-to-process eggshells are clean using vinegar and boil them first to remove unwanted impurities. If you consume contaminated eggshells, you will be infected with Salmonella with many symptoms, such as diarrhea, vomit, fever, and stomach cramps. 

In addition, another risk of consuming eggshells is their size. If you eat the eggshells that are not crushed (into powder), there is a possibility they might injure your throat or esophagus. So, do not forget to grind your eggshells into powder. 

The most important risk to know is, do not take calcium supplements in excessive amounts and make sure to measure the eggshell powder that you use in food. An excessive amount of use can cause hypercalcemia, kidney damage, and kidney stones.

How To Eat Eggshells?

Eggshells can be consumed in many ways or can be mixed with various foods. 

The most common way to consume eggshells is to make them into a calcium supplement, so they are very easy to consume. Some sources also explain that eggshells that have been processed into powder can be used in all sorts of recipes. 

People can use eggshell powder for baking. This work can be done in any flour-based baking such as making bread or pizza. Add this nutritious powder to your baking by sprinkling a teaspoon in when you bake. 

Adding eggshell powder to fruit smoothies or juice is also a brilliant idea!. Smoothies and juices are already fantastic beverages for getting some extra vitamins into your diet. Adding a teaspoon of eggshell powder into the mix before blending, it helps you to get enough calcium in your diet. 

Moreover, the eggshell powder can be added to your homemade sauce. By the time your meal has been cooked and no one will even notice that it contains some extra calcium from eggshell powder. It won’t change the taste of your food!


In this article, we have answered and discussed “can you eat eggshells” and also mentioned the nutritional content and ways to consume eggshells. 

Hope this article is very useful and fun to read. If you have further questions, please let us know!


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.