Question

why do we need food ?give three reasons

Answer 1

Nutrients provide energy for body activities and all functions of the body. Energy is used in different processes of a living organism like breathing, digesting food, etc. ... Food is also used for "growth and repair" of the different body parts. It also helps to keep the immune system healthy."

Answer 2

Food is one of necessary things for us because of the following reasons.
•food provides nutrients
•energy is used in different processes of a living organisms like breathing,digestion food .etc.
•energy from food keeps us warm