The Surprising Benefits of Eggshells
Eggshells are often seen as kitchen waste, but they’re actually a valuable source of nutrients and minerals — both for your body and your garden. Packed with calcium and trace minerals, eggshells can be reused in a variety of ways that promote health and sustainability.
Health Benefits
Eggshells contain about 90% calcium carbonate, a mineral essential for strong bones and teeth. When properly disinfected and ground, they can be safely consumed in small amounts as a natural dietary supplement. To prepare them, boil the shells for about five minutes, dry them in the sun or oven, and grind them into a fine powder.
This powder can be added to juices, smoothies, or soups to boost calcium intake. Research suggests that calcium from eggshells is absorbed as efficiently as commercial supplements, making it a natural and eco-friendly way to help prevent osteoporosis and maintain bone health.
In addition to calcium, eggshells also contain trace amounts of magnesium, phosphorus, and zinc — minerals that support overall wellness and body function.