Here’s the reality behind it:
Eggshells are made mostly of calcium carbonate, the same basic mineral found in some antacids and supplements. So in theory, they do contain calcium. That’s why people sometimes grind cleaned, sterilized eggshells into powder and use them as a DIY calcium source.
But there are important problems with the idea of just boiling and consuming them:
- Boiling doesn’t make them safe by itself — raw shells can carry bacteria like Salmonella unless properly sterilized (usually needs thorough cleaning + high-heat baking, not just boiling).
- Absorption is uncertain — calcium from eggshell powder isn’t always absorbed efficiently by the body compared to regulated supplements or dietary sources.
- Dosage is uncontrolled — too much calcium can contribute to kidney stones or other mineral imbalances.
- Quality matters — supplements are tested for purity; homemade powder is not.
So what’s the truth?
Eggshells are not useless waste, but they’re also not a reliable medical solution for health problems. They’re better viewed as a potential raw calcium source, not a treatment.
Better evidence-based alternatives
For bone and calcium support:
- Dairy products (milk, yogurt, cheese)
- Leafy greens (spinach, kale)
- Fortified foods
- Medically approved calcium supplements if needed
Bottom line
Boiling eggshells won’t “fix” anything significant on its own. It’s a recycled home idea that sounds clever online but doesn’t replace proper nutrition or medical treatment.
If you want, I can break down which viral home remedies are actually useful vs completely misleading—there are a lot of them circulating.
