Coconut water has been very popular for various reasons. While water can be just has hydrating as coconut water, it contains potassium that can help with hydration and muscle recovery. The difference between using coconut water and water is the calories and sugar. The sugar content is minimal with coconut water when compared to other sugary beverages (juice, sodas, etc...).
Coconut water add an additional flavor profile that makes your blast that much more delicious.