Components of food

Food is a nutritive substance taken by an organism for growth work, repair and
maintaining life processes. Food is a kind of fuel for the living things. Just as petrol
fuel for our car, in the same way, food is a fuel for our body.
We must eat to provide us energy s known as staple food. The study of compositions
of food materials and the quantities of food materials required by our body for growth,
maintenance and survival is called Nutrition. A nutrient is an organic a or inorganic
substance required for the survival of a living being.