Thus it helps convey the food to all parts of the body. It dissolves vitamins, minerals, amino acids, glucose and other nutrients contained in the food we eat. Without it in our diets we could not digest or absorb the foods we eat or eliminate the body's digestive waste. Even urine consists of about 97 per cent water. Bowel wastes can be removed only if there is an ample amount of water present to avoid constipation.
Water also helps maintain the body's temperature by evaporating from the lungs and the skin.
It also maintains a balance between the water and dissolved salts inside and outside of cells in the body. It lubricates joints and as a result prevents friction between moving body parts. It acts as a shock absorber inside eyes, spinal cord and joints. It is useful to build tissues. Thus, it is most important for us to drink at least six to eight glasses regularly, even if we are not feeling thirsty.