List the six main purposes for which food is required by the body.

Purpose for which food is needed by the body.

1. Growth — Food is necessary for building new protoplasm or cells. This helps in the growth of an organism.
2. Repair — Food provides material for the repair of worn-out or injured cells.
3. Energy — We obtain energy from food. This energy is required for carrying out various life functions.
4. Maintenance — Nutrients obtained through food help to maintain the chemical composition of cells.
5. Provision of raw material — to manufacture various secretions namely, hormones, enzymes, milk, sweat etc.
6. Protection — Food provides protection from infection and diseases.