Healthy and unhealthy food

People won't need to make exercise if they eat too much.

When people eat too much they put on weight.

Eating less fat would cause heart attacks.

Sugar provides energy, but it causes obesity.

Fibre foods are good for the energy balance.

What does "the energy balance" mean?

What are fatty foods?

What are fibre foods?

What do the underlined words in the text refer to?

   Fat is very high in calories, and so is no help at all in keeping energy balance. Fat has also been linked with heart disease, and many experts believe that eating less would help to reduce it.

What do the underlined words in the text refer to?

   Sugar isn't good for the energy balance either. The only value of the diet is to provide energy, and you can get that from other foods.

What do the underlined words in the text refer to?

There's no doubt that too much sugar makes you fat and it doesn't do your teeth much good either. 

What do the underlined words in the text refer to?

One of the simplest ways of eating more fibre is to eat more bread, particularly whole meal, granary, or high fibre bread. It's a good, cheap source of fibre and nutrients without too many calories. Potatoes are good, too. Like bread, they are underrated, but they're excellent for filling you up without making you fat, especially if you don't cover them with butter or fry them in fat.