How do you read a body water percentage chart?


Quick Answer

Body water percentage charts are read in conjunction with body fat percentages. For example, a man with a body fat percentage of 4-20 percent has a body water percentage of 58-70 percent, according to About.com. In general, people with higher levels of body fat have lower levels of body water. Men and women have different body water percentage charts because women have higher body fat and lower muscle mass than men.

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Full Answer

Babies have the highest level of body water content, measuring 78 percent at birth. This percentage gradually decreases with age, with the average body water percentage lowering to 65 percent after the first year. An average body water percentage for an adult male is 60 percent, with lean muscle holding more water content than tissue fat, states About.com.

Water is lost when a person feels thirsty, which results in dark, concentrated urine. People feel thirsty when they lose 2-3 percent of body water, according to About.com. Consistent loss of body water results in dehydration, headache, constipation, mood changes, and dry lips, notes Mayo Clinic.

Body water is spread throughout the body to varying degrees. For example, the amount of water in the heart is 73 percent, 83 percent in the lungs, and 31 percent in bones, according to About.com. Water is used to regulate body temperature, act as a shock absorber, flush waste toxins from the body, and to help metabolise food.

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