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A 26-year-old male asked:

What percentage of adult men's weight is body water? and can you use body water percentage to measure hydration?

1 doctor answer1 doctor weighed in
Dr. Hesham Hassaballa
Pulmonary Critical Care 22 years experience
60%: In a male, 60% of body weight is water. In women, it is 50%. You typically cannot use body water percentage to measure hydration. The best way to hydrate is to thirst: that is the most powerful stimulus for drinking water. Also, if your urine is dark, that usually means you are dehydrated as well.

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Last updated Mar 29, 2016

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