Nutrition Available to Purchase

Human nutrition is concerned with food and its effect on people. It deals with the food components that are used by the body for energy and growth, and the nutrients that must be supplied in the diet to maintain health. The work of the nutritionist includes analysing these substances in different foods, examining the body's biochemical and physiological reactions to them, estimating the body's requirements for nutrients, and finding out how these requirements vary in different physiological states, between individuals, and in disease. It is concerned, moreover, with recognising the effects of faulty feeding and with finding ways to bring about improvements. In its broadest aspect nutrition takes account of those factors such as culture, religion and psychology which influence the development of group and individual food habits.