
In recent years, natural and sustainable approaches to health have gained popularity. One trend that often circulates online is the idea that boiling eggshells can prevent or treat disease. But how much of this is supported by science? Let’s break it down.
What Happens When You Boil Eggshells
Eggshells are made mostly of calcium carbonate (about 95%), along with small amounts of protein and trace minerals such as magnesium and phosphorus. Boiling them produces a few important effects:
- Kills bacteria: Boiling destroys pathogens like Salmonella, making the shells safe to handle.
- Releases some calcium into the water: This is why “eggshell tea” or eggshell water is sometimes used as a supplement or for plants.
Boiling makes eggshells cleaner and safer to use, but it does not transform them into a medicine.
Can Boiled Eggshells Cure or Prevent Disease?

The short answer: no.
Boiled eggshells do not create substances that can directly fight infections, viruses, or chronic diseases in the human body. However, they can contribute to overall health in indirect ways.
1. A Natural Source of Calcium
Calcium is essential for: