- Add 1/2 to 1 teaspoon to smoothies
- Mix it into yogurt or oatmeal
- Stir it into soups or sauces
- Blend it with protein shakes
Important: Do not exceed one teaspoon per day unless advised by a healthcare provider. Too much calcium can lead to:
- Kidney stones
- Digestive discomfort
- Reduced absorption of other nutrients like iron and zinc
Always consult a doctor if you have a history of kidney issues or are already taking calcium supplements.
The Science Behind the Benefits
The primary component of eggshells—calcium carbonate—is not only structurally similar to the calcium found in supplements, but studies also show it is bioavailable, meaning the body can absorb it effectively when properly prepared.
Some studies suggest that eggshell calcium may also support cartilage regeneration, which could help people dealing with arthritis or joint pain. Additional trace minerals in the powder may contribute to overall bone and joint health, particularly in older adults.
Small Habit, Big Benefits
Boiling eggshells might seem like a quirky old-fashioned tip, but it’s backed by science, common sense, and sustainability. It’s a rare win-win: saving money, improving health, and reducing waste all at once.
With just a few minutes of effort, you can transform something you used to throw away into a nutritional supplement, a natural fertilizer, and a household helper. Sometimes, the best solutions are the ones we’ve overlooked the longest.
Try boiling your eggshells this week—you might be surprised by how useful they really are.
