Lisa Blair from the London Nutrition Clinic is AudioFuel’s nutrition guru, her advice...

Eat foods as close to their natural state as possible, the less processed, packaged or refined the better. Eat a wide variety of wholefoods such as fresh fruit, vegetables, and whole grains. We are all in danger of restricting our diet to the same small selection of foods, so try to increase the variety of what you put in your shopping basket each week.

Your body needs carbohydrate, protein and fat, as well as vitamins, mineral, trace elements and water. If you deny it those things, you are likely to become lethargic, ill or get injured.