Subscription Information 5. The amount of water taken in during an average day should be about two to three liters. Imbibed water amounts to about one to one and a half liters, and the rest comes from the water contained in foods. Without water, there can be no life. Blood, lymph, digestive juices, urine, sweat, and tears use water as a solvent to transport nutrients.
Water is needed to carry wastes out of the body.
Embryos and the brain are cushioned in a watery environment. Sound and light waves are transmitted to eyes and ears via watery media. Good health can be achieved only when the balance of water and electrolytes is optimal. Electrolytes and water are lost constantly via the kidney, sweat glands, and the intestines. The body tries to correct imbalances but can only do so if adequate amounts water, protein and the salts are ingested.