Biological Molecules and Enzymes

There are 7 components of a healthy diet:

• carbohydrates
• protein
• lipids and fats
• vitamins
• fibre
• water

There are 3 reasons why we need a healthy diet:

• to supply us with energy
• to provide materials for growth and repair
• to help fight disease and keep our body healthy

If we don't eat the correct amount of each of these food groups and do not have a balanced diet, then we will not be able to carry out the life processes and so will be unable to live a healthy life.

Balanced diet: A balanced diet is a diet consisting the right proportions of every nutrient in suitably sized portions