Question

why do we need food?
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Answer 1

Explanation:

A food is something that provides nutrients. ... energy for activity, growth, and all functions of the body such as breathing, digesting food, and keeping warm; materials for the growth and repair of the body, and for keeping the immune system healthy.

Answer 2

1. Food is converted by oxygen into energy for your body, A waste product of this process is carbon dioxide which you then breathe out. People with lung conditions can find breathing out harder to do. If carbon dioxide builds up in your body it can make you feel weaker.

2. A good balanced diet helps maintain your strength and fitness and promote a healthy immune system as well as helping you fight their severity if you do get an infection or flare up.