Sports drinks, also known as electrolyte drinks, are functional beverages whose stated purpose is to help athletes replace water, electrolytes, and energy before, during and especially after training or competition. The evidence is lacking pertaining to the efficacy of use of commercial sports drinks for sports and fitness performance.[1]
Consuming too much or in unnecessary circumstances may hinder health or performance. The drinks, or some of their ingredients such as sugar, may not be suitable for certain conditions.[1]