Coconut Water (Water content: 95%)

Coconut water is a hydrating beverage that is extremely nutritious. It's not only high in water, but it's also high in electrolytes such as potassium, sodium, and chloride.

Coconut water has been demonstrated in studies to be effective in rehydrating. It's also believed to help exercise recovery because of its electrolyte content. Because many sports drinks are filled with added sugar and other unhealthy ingredients, drinking coconut water after exercise is a much healthier option than drinking a manufactured sports drink. A 1-cup (237-ml) serving of Gatorade, for example, has 13 grams of sugar, which is 50% higher than the same amount of coconut water.