Post-exercise hydration should be approximately how many liters per kilogram of body weight lost?

Post-exercise hydration should be approximately how many liters per kilogram of body weight lost?

• A. 1.25–1.5 L per kg lost
• B. 0.5 L per kg lost
• C. 2-3 L per kg lost
• D. Hydration is not necessary after exercise.

Answer: (A)

Rehydration after exercise aims to restore the fluid lost through sweating, and the best target is to replace roughly 1.25–1.5 liters of fluid for every kilogram of body weight you lost during the session. This rule accounts not only for the water that was shed but also for ongoing water losses and the need to restore plasma volume as you recover. If you lost 1 kg, you'd aim for about 1.25–1.5 liters; if you lost 2 kg, about 2.5–3 liters. Using beverages with electrolytes, especially sodium, helps fluid be retained and supports quicker restoration of balance. The other options fall short or overshoot: 0.5 L per kg doesn’t fully replace the deficit, 2–3 L per kg is usually excessive and can cause discomfort or imbalance, and saying hydration isn’t necessary ignores the important need to restore fluid and support performance.

Rehydration after exercise aims to restore the fluid lost through sweating, and the best target is to replace roughly 1.25–1.5 liters of fluid for every kilogram of body weight you lost during the session. This rule accounts not only for the water that was shed but also for ongoing water losses and the need to restore plasma volume as you recover. If you lost 1 kg, you'd aim for about 1.25–1.5 liters; if you lost 2 kg, about 2.5–3 liters. Using beverages with electrolytes, especially sodium, helps fluid be retained and supports quicker restoration of balance. The other options fall short or overshoot: 0.5 L per kg doesn’t fully replace the deficit, 2–3 L per kg is usually excessive and can cause discomfort or imbalance, and saying hydration isn’t necessary ignores the important need to restore fluid and support performance.