Unlike many nutrients, your body cannot store extra water for times of need.
Water is used, however, in nearly all bodily functions.
Water aids in digestion, absorption, circulation, excretion, transporting nutrients, tissue building and maintaining body temperature. Water is also a component of weight loss, because it is needed to remove byproducts created during the breakdown of fat tissue. The amount of fluid that each individual needs depends on a number of factors. A person's weight, age, exercise level and the climate are some of the conditions that determine the amount of water needed each day. The average adult loses approximately 10 cups of water daily.