On average, 1 mL of water loss during exercise is equivalent to how many grams of body weight loss?

The correct response is based on the fact that water loss during exercise occurs in a one-to-one ratio with body weight loss. This means that for every milliliter of water lost from the body, there is an equivalent loss of one gram of body weight. Thus, if there is a total loss of 1 mL of water, it results in a decrease of 1 g in body weight.

This understanding is crucial for athletes and individuals engaged in exercise, as accurately tracking hydration status and understanding the relationship between water loss and body weight can help prevent dehydration and optimize performance. In practical terms, monitoring body weight changes before and after exercise can provide valuable insights into the fluid balance and the need for rehydration during and after physical activity.