What did the 2010 review in the International Journal of Sport Nutrition and Exercise Metabolism conclude about isotonic drinks?
The 2010 review found that carbohydrate-electrolyte solutions improved endurance performance by 2–3% in events lasting over 60 minutes compared to water alone. However, it noted no significant performance advantage for shorter or lower-intensity exercise, reinforcing the need to tailor hydration strategies to the duration and intensity of the activity.
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