Also, people who live in hot, dry climates and those with certain diseases may need extra water but the average healthy person does not. However little evidence is found that flushing out toxins through drinking copious amounts can improve health.
Drs. Dan Negoianu and Stanley Goldfarb of the University of Pennsylvania assessed published clinical studies on the benefits of drinking water. They found no evidence to support the common belief that drinking eight glasses of water a day can result in health benefits.
Contrary to popular belief that drinking eight glasses of water improved kidney function and provided a more luminous skin tone, the new study did show that an increased water intake did not lead to a health benefit.
Though the water intake in copious amounts does help the kidney remove substances, such as sodium researchers could not find conclusive evidence including that it helps fight weight gain by keeping a person feeling full.
The researchers conclude that "drink when you're thirsty." The study entitled "Just Add Water" will be published in the June issue of the Journal of the American Society of Nephrology.
