'No need to count calories, go hungry or diet ever again' The Times This revolutionary book reveals: Ten reasons why eating a low-fat, calorie controlled diet makes sustained weight loss virtually impossible. Why the less hungry you are, the more weight you'll lose. How different types of calories have different fattening potential. Why weight is not just about calories, but the impact our diet has on key hormones including insulin and leptin. Why you should ignore foods labelled 'low fat' or 'light'. Why aerobic exercise has little impact on weight, and the type of exercise that does. The simple and mental tricks to ensure permanent success.