Dr. Oz on Food Myths
Susie and Alice are twins who like to drink a lot of water. "I probably get through about at least a liter, a liter and a half of water a day, because it does make a difference to my skin," Alice says.
To determine whether water really does make a difference, researchers first measured the moisture, elasticity and oiliness of each girl's skin. Over the next week, the twins ate the same diet-except Alice drank plenty of water, and Suzie drank no water.