Don’t throw them away anymore: How to use eggshells for your health and your plants | August 8, 2025

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Don’t throw them away anymore: How to use eggshells for your health and your plants

Eggshells are one of those kitchen waste products we tend to throw away without a second thought. However, what many people don’t realize is that this “waste” is actually a valuable source of nutrients, both for human health and for plant health. Reusing them is not only a smart way to reduce waste, but also a natural and economical way to reap real benefits.

Health Benefits

Eggshells are composed of 90% calcium carbonate, an essential mineral for maintaining strong bones and teeth. After proper disinfection and pulverizing, they can be consumed in small amounts as a natural supplement. To do this, simply boil the shells for 5 minutes, dry them in the sun or oven, and then grind them into a fine powder.

This powder can be added to juices, smoothies, or soups to provide additional calcium. Some studies suggest that the calcium in eggshells is as absorbable as that in commercial supplements, making them a natural option for preventing osteoporosis or strengthening the bone system.

Additionally, they contain traces of other minerals such as magnesium, phosphorus, and zinc, which also contribute to the proper functioning of the body.