Our bodies are always active, aren't they? Even when you're asleep your heart is beating, you keep on breathing, and your body is being repaired and renewed.
All of this activity needs a supply of energy and a source of raw materials. Both of these things come from the food we eat. That's why we need a good diet to be healthy.
This food pyramid shows lot of things that are good for us to eat.
Try answering these questions to see how much you know about healthy foods.