Coconut water is the clear, naturally sweet liquid found inside young coconuts (Cocos nucifera). It provides water along with naturally occurring carbohydrates and electrolytes, particularly potassium, with smaller amounts of sodium, magnesium, calcium, and other minerals. Its light flavor and electrolyte content make it useful as a refreshing beverage, smoothie liquid, and hydration option after exercise or time spent in hot weather. Choose plain, unsweetened coconut water without added sugars or flavors.