What makes an optimal sports drink?
What The Active Body Needs. To keep going strong, active bodies require fluid, carbohydrates and electrolytes. Other ingredients that are sometimes added to sports drinks to provide additional benefits such as vitamins, protein and caffeine aren't needed because the body can't use them during exercise.
Electrolytes (Sodium and Potassium). As with carbohydrates, both the amount and types of electrolytes are key factors in a scientifically-based sports drink. Electrolytes like sodium help determine how much fluid is consumed and how much of that fluid remains in the body for hydration.
Carbonation. Carbonation in a sports drink is a bad addition because bubbles get in the way of drinking. When you lose fluid quickly in the form of sweat, you need to replace it quickly.
Caffeine. Caffeine is a drug, not a nutrient. Caffeine has a diuretic effect that can limit rehydration after exercise by increasing urine production when the body is at rest. It should therefore not be contained in sports drinks.
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