A well-balanced diet provides all of the:

• Energy you need to keep active throughout the day
• Nutrients you need for growth and repair
• Helping you to stay strong and healthy and help to prevent diet-related illness, such as some cancers
• Keeping active and eating a healthy balanced diet can also help you to maintain a healthy weight.

Deficiencies in some key nutrients – such as vitamin A, B, C and E, and zinc, iron and selenium – can weaken parts of your immune system.