In 1945 there was a recommendation that a healthy adult should have about 2.5 liters of water intake a day, including water that is part of the food you eat. S

In 1945 there was a recommendation that a healthy adult should have about 2.5 liters of water intake a day, including water that is part of the food you eat. Somehow the media managed to drop the last part, and recommended you drink at least 2l water a day. Or even more. Source: http://www.sciencealert.com/there-s-no-evidence-we-need-to-drink-eight-glasses-of-water-a-day-researcher-advises http://www.sciencealert.com/there-s-no-evidence-we-need-to-d... I know of no credible research that shows that drinking more than required to still thirst is beneficial in a healthy human.