Water is essential for all life on Earth. Humans can survive for several weeks without food, but for only a few days without water. A constant supply is needed to replenish the fluids lost through normal physiological activities, such as respiration, sweating and urination. Water generated from the biochemical metabolism of nutrients provides a significant proportion of the daily water requirements for some arthropods and desert animals but provides only a small fraction of a human's necessary intake.
The daily water production by oxidative metabolism should be removed quite fast, to avoid its inhibitory effect on oxidative metabolism.
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Ranges of daily water intake and production from metabolism
Ranges of daily water elimination through kidney,perspiration, lung
Drinking Water There are a variety of trace elements present in virtually all potable water, some of which play a role in metabolism; for example sodium, potassium and chloride are common chemicals found in very small amounts in most waters, and these elements play a role (not necessarily major) in body metabolism. Other elements such as fluoride, while beneficial in low concentrations, can cause dental problems and other issues when present at high levels.
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Water and its mineral components as nutrients
Water and electrolites metabolism reference value
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