Human Nutrition Human nutrition is the study of how food affects the health and survival of the human body. Human beings require food to grow, reproduce, and maintain good health. Without the food our bodies could not stay warm, build or repair tissues, and maintain a good heartbeat. Eating the right foods could help us rid certain diseases or recover faster other illness occur. These and other important functions are dueled by chemical substances in our food called nutrients. Nutrients p0lya a major role in maintaining the bodies organs in functioning at its proper level. The Basal Metabolism Rate (BMR) is in inf