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Body water is the single most important factor of body weight. It
represents over half of your total weight and almost two-thirds of your
lean body mass. Body weight also a key contributor to cellular functions
and plays a vital role in regulating body temperature, mostly though
perspiration.
The combination of your weight and fat measurements could appear to be
“normal” but your body hydration level could be insufficient for healthy living.
Body water measurement results are influenced by the proportion of body fat and
muscle. If the proportion of body fat is high, or the proportion of muscle is low, then the
body water results will tend to be low.
Short term fluctuations of body weight, body fat, and body water are normal;
we suggest you chart your progress over time, rather than focus on a single
day’s reading.
Total Body Water Percentage
Source: Derived from Wang & Deurenberg: “Hydration of fat-free body mass.”
American Journal. Clin Nutr 1999,69833-841
Body Fat & Range
Optimal Total Body Water & Range
Men
4-14%
70-63%
15-21%
63-57%
22-24%
55-37%
25 and Over
70-58%
W
omen
4-20%
70-58%
21-29%
58-52%
30-32%
52-49%
33 and Over
49-37%
Normal healthy range of water weight percentage:
BODY WATER
