Which drink is most effective for rehydration in case of severe dehydration?

In cases of severe dehydration, sports drinks are particularly effective for rehydration because they are formulated to replenish both fluids and electrolytes lost during excessive sweating or illness. Sports drinks typically contain a balanced mix of water, sugars, and electrolytes such as sodium and potassium, which are essential for restoring the body's fluid balance and promoting faster hydration.

While water is fundamental for hydration, it does not provide electrolytes, which are crucial for individuals experiencing severe dehydration. Fruit juices often contain a high sugar content, which can lead to gastrointestinal discomfort and may not effectively restore electrolyte balance. Tea and coffee, while they contain fluids, also have diuretic properties that can lead to further fluid loss, making them less suitable for hydrating someone with severe dehydration.

The formulation of sports drinks is specifically tailored to support recovery after heavy physical activity or dehydration, making them the optimal choice in this situation.