Megadoses of calcium can cause digestion problems and possibly kidney damage.

Megadoses

Extremely large doses of vitamins or drugs, much higher than the recommended amounts.

Calcium

A chemical element, symbol Ca, essential for many bodily functions including bone and teeth formation, muscle function, and blood clotting.

Kidney Damage

Harm or injury to the kidneys, which can impair their ability to filter waste from the blood and regulate various bodily functions. This can result from diseases, infections, or exposure to toxins.