Good health depends on good nutrition. Good nutrition means providing what the body needs for normal functioning. These are water, carbohydrates, proteins, fats, vitamins, minerals and other micronutrients in proper balance.
Water is essential for every bodily function. It is necessary to the transport of nutrients and waste products. All digestive, absorptive, circulatory and excretory processes require water. It is also needed for the utilization of water soluble vitamins.
Carbohydrate is the primary source of energy for bodily functions. It is source of the blood glucose needed by the body’s cells and the only energy source for the brain and the red blood cells.
Protein provides the amino acids which are the building blocks for body growth and development. It is also needed in the production of hormones, antibodies, enzymes and tissues while providing energy as well.
Fat is the most concentrated source of energy available to the body. It is especially necessary for normal development during infancy and childhood. The current focus, however, is in reduction or proper management of dietary fat because of the danger to human health of excessive bad cholesterol particularly as main cause of high blood pressure and host of related diseases.
Vitamins and minerals are often referred to as micronutrients since they are required in relatively small amounts compared with the above basic nutrients. They are, however, also essential to life and their deficiency leads to disease.