Why we eat
You play football all evening. A banana helps you run again.
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Step 1 of 4
- You eat food, like rice or a banana.
- Your body breaks it into small pieces.
- Some pieces give you energy to move.
- Some help you grow and repair.
The rule
Food does three jobs in your body.
- Energy — to run, breathe and think.
- Growth — to build new parts, so you grow taller.
- Repair — to heal a cut or a bruise.
Example
A scraped knee heals. The food you eat helps your body repair the knee.