, such as fruit, vegetables and legumes, will control your hunger and appetite naturally.The South Beach Diet(Headline, £6.99) Take away tip Have a healthy mid-morning and mid-afternoon snack, whether you're hungry or not. Try hummus with raw vegetables or a low-fat

. With a focus on fruit, vegetables, whole grains, low-fat protein foods, nuts, beans and lentils, the foods you eat will result in a steady level of sugar in the blood stream. "You will be full of energy, which is perfect for runners," says Bean.Take away

fractures, but in the long term difficulty conceiving and the early onset of osteoporosis are also possibilties.In the 1970s experts thought amenorrhoea was linked to weight loss or low body fat but that view has since changed. Now an energy imbalance

Metabolism revealed that fibre could be the secret to greater endurance. Eight runners were given low-fibre cornflakes and white toast with jam one morning, and high-fibre All Bran with fruit another morning. On each occasion the runners waited three hours