Myth: Water is the only fluid that truly hydrates your body.
Truth: According to the International Center for Sports Nutrition, juice, milk, soft drinks, coffee and other beverages count too. Research has shown that the dehydrating effect of caffeine-containing coffee and soda has been exaggerated. An average 12-ounce can of caffeine-containing soda results in the loss of just 1 ounce more fluid through urine than would normally occur. Aim for 8 to 12 glasses of fluid a day. Keep water as the number 1 pick.