Science Fact Finder | The Human Body - What Percent Of Human Body Weight Is Water?

What percent of human body weight is water?

The human body is 61.8 percent water by weight. Protein accounts for 16.6 percent; fat, 14.9 percent; and nitrogen, 3.3 percent of human body weight. Other elements constitute smaller percentages of body weight.

Source: Rovin, Jeff. Laws of Order, p. 108.

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