The Four Basic Nutrients Water, carbohydrates, proteins, and fats are the basic building blocks of a good diet. By choosing the healthiest forms of each of these nutrients, and eating them in the proper balance, you enable your body to function at its optimal level. The human body is two-thirds water. Water is an essential nutrient that is involved in every function of the body.
Water helps transport nutrients and waste products in and out of cells.
Water is necessary for all digestive, absorption, circulatory, and excretory functions Water is needed for the utilization of the water-soluble vitamins. It is needed for the maintenance of proper body temperature. It is recommended that you drink at least eight 8-ounce glasses of water each day.