One Calorie is equal to 1000 calories. term used by scientist to measure the energy stored in foods.
the nutrients that the body needs are water, carbohydrates, fats, proteins, vitamins and minerals
every cell in the human body needs water because many of the body's processes, including chemical reactions, take place in water.
Simple and complex are the main sources of energy for the body.
are formed from fatty acids and glycerol. your body needs certain fatty acids, called essential fatty acids, to produce cell membrane, myelin sheaths, and certain hormones. fatty acids help the body absorb fat-soluble vitamins.
supply raw materials for growth and repair of structure such as skin and muscle. They have regulatory and transport functions