Why does tea make you pee?

Caffeine, a natural stimulant found in tea, is a diuretic. Diuretics increase urine output by interfering with the kidneys' ability to reabsorb water. As a result, drinking tea can lead to increased urination. Other diuretic beverages include coffee, alcohol, and soda. It's important to stay hydrated by drinking plenty of fluids when consuming diuretic beverages to avoid dehydration.