Many people who actually consume eggs as a healthy part of their diet discard eggshells as waste. Why? The truth is that most of them are not even aware of some of the benefits eggshells offer.

So let’s start from the start. What are eggshells, really? Well, they are actually one of the cheapest and most effective natural sources of calcium.

Eggshells are made up of around 95% calcium carbonate, along with small amounts of magnesium, potassium, zinc, and iron. At the same time, they contain the same minerals that help build strong bones, teeth, and nails. They consist of three protective layers: the hard outer shell composed of calcium crystals, and two inner membranes rich in keratin proteins that guard against bacteria.

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