In addition to calcium, the shells also contain traces of magnesium, phosphorus and zinc, minerals that also contribute to the proper functioning of the body.
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To help the garden
Eggshells are also widely used in gardening. One of their most common uses is as a natural fertilizer. When crushed and mixed with soil, they enrich it with calcium and help balance the pH. This is especially useful for crops like tomatoes, peppers, and eggplants that need more calcium.
