Water is necessary in the body for many reasons. It acts
as a solvent for nutrients. It is an important medium for
chemical reactions within the body. Water also transports
nutrients to the cells and rids the body of waste products.
It lubricates the joints, facilitates food passage, and regulates
body temperature through conduction of heat, perspiration,
and excretion. The Dietary Reference Intake levels for water
vary by age, gender, and health status (pregnant or lactating
women need more water). Sources of water include beverages,
soups, and high-moisture foods like fruits and vegetables.