Crazy for coconut water?— published: 10-08-2014
Coconut water, the flavorful liquid found in young green coconuts, has become a popular drink. It is often promoted for a variety of ailments—from curing bad skin to resolving hangovers. But coconut water is also touted as a fluid replacement alternative. For this reason, some Warfighters choose coconut water over sports beverages because coconut water is “natural” and contains carbohydrates and key electrolytes such as sodium and potassium. However, not all brands of coconut water are created equal. In fact, they can vary considerably in terms of their nutrient content, so read product labels to be sure you’re getting the right amounts of nutrients you need for optimal performance. In addition, many kinds of coconut water contain fruit juice for flavor, which can increase the sugar and calorie content of the drink.
One of the biggest appeals of coconut water is its naturally high potassium content. While the potassium content is high, the amounts of carbohydrate and sodium in coconut water are sometimes very low, and individuals who participate in prolonged, vigorous exercise (longer than an hour) may need more carbohydrate and sodium for proper hydration. For more information about hydration needs, see HPRC’s article on fluids and exercise.
For periods of exercise less than one hour, water is always your best choice—about 3–8 ounces every 15–20 minutes. But for longer periods of exercise, sports beverages are a good choice because they are specially formulated to replenish carbohydrate, sodium, and potassium lost during extended and/or vigorous physical activity. If you choose sports beverages, drink 3–8 ounces every 15–20 minutes to stay hydrated. Again, be sure to read the product label to make sure your drink has what you need, and nothing more. For more information about proper fueling, read An Athlete’s Guide to Nutrient Timing.
And what about that coconut water? There simply isn’t enough evidence to support the use of coconut water as a remedy for any condition. And although it’s a tasty beverage, know what’s in it so you can replenish what your body needs—no more, no less.