The International Society of Sports Nutrition’s position statement on energy drinks[1] suggests that the main ergogenic (athletic enhancing) ingredients are caffeine and sugar. Caffeine provides mental focus, alertness, and improves performance while sugar provides quick energy. A review confirms this position and presents some evidence to support improvements in cognitive performance from energy drinks, but suggests there are adverse effects (metabolic, dental, sleep, stress, and more) that may outweigh the positives.
What are energy drinks good for?
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•Last Updated: May 16, 2025
Energy drinks are primarily beneficial for enhancing athletic performance and cognitive function due to their main ingredients, caffeine and sugar, which provide mental focus and quick energy. However, there are potential adverse effects, such as metabolic issues and sleep disturbances, that may outweigh these benefits.