A 2003 study found that drinking 500 ml of water increased metabolic rate by 30%!

Elemental Health And Nutrition21 Dec, 2021Health

The increase occurred within 10 minutes and reached a maximum after 30?40 minutes. The total thermogenic response was about 23 calories. This was mainly attributed to the body needing to warm the water up from room temperature of 22 degrees, to body temperature of 37 degrees.