Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Electrolyte blends—typically containing sodium, potassium, magnesium, and calcium—are scientifically validated and commonly used to support or treat lack of endurance, particularly in athletes and individuals engaging in prolonged physical activity. During endurance exercise, the body loses significant amounts of electrolytes through sweat, primarily sodium and chloride, but also potassium and magnesium. These minerals are essential for maintaining fluid balance, nerve function, and muscle contraction. Scientific studies have demonstrated that inadequate electrolyte balance can lead to muscle cramps, fatigue, decreased performance, and, in extreme cases, hyponatremia or other serious health issues. Supplementing with an electrolyte blend helps to restore these key minerals, supporting sustained exercise performance and reducing the risk of dehydration and associated symptoms. Clinical trials have shown that electrolyte supplementation, especially when combined with adequate hydration, can improve endurance performance by helping to maintain plasma volume, delay fatigue, and support thermoregulation. While the exact composition and proportion of electrolytes may vary among products, their use is widely endorsed by sports medicine organizations and has a robust evidence base, particularly in the context of endurance sports performed in hot or humid conditions.

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