Coconut water is all the rage for hydration, and for good reason. "Studies support that coconut water hydrates just as well as commercial sports beverages," Nieman says. And each 16-ounce Vita Coco is positively potassium-packed – 940 mg, or more than 15 times the amount in the standard sports drink. But it contains just 22 grams of sugar, which some experts say doesn't provide enough calories to refuel depleted muscles. That's why we like Vita Coco with Pineapple to follow some intense exercise. The extra fruit puree adds 8 grams of sugar to each Tetra Pak pouch, giving the drink a slightly sweeter flavor. [$29 for a 12-pack; vitacoco.com]
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