concept of nutrition

NUTRITION Concepts of Nutrition and food Nutrients Nutrition is the process by which organisms take in and use nutrients. Nutrients are any substances that nourish an organism. The y include proteins, lipids, minerals and vitamins . Food is any material when taken in absorbed and utilized meet requirement of plant and animal body. FUNCTION OF FOOD  Oxidized to release energy  Used in growth of cells  Used to repair lost cells and tissue TYPES OF NUTRITION There are two main types of nutrition: autotrophic nutrition and h eterotrophic nutrition. Autotrophic Nutrition Is the process by which organisms manufacture their own food from simple inorganic substances like carbon and hydrogen using either light energy (photosynthesis) or chemical energy (chemosynthesis) . Heterotrophi c Nutrition Is the process in which organisms get nutrients by eating other organisms . IMPORTANCE OF NUTRITION  Prevent diseases  Helps growth and development of cells, tissue and organs  It helps to repair damaged parts  It helps to protect the body against infection and diseases