The increasingly popular drink, coconut water, is getting good reviews for its elixir-like health benefits and its hydrating properties so what is there to know about coconut water… 1) Coconut water is rich …in antioxidants and ions such as calcium, iron, magnesium, potassium, sodium, zinc, copper, manganese, and selenium and vitamins B6, C, and E, as well as vitamin K, riboflavin, niacin, pantothenic acid, and folate.