If you have tried a new diet every January for the last decade then the chances are that the diets have failed, or, at least, have had no lasting success. Part of the reason the diet book industry is constantly booming is that a huge percentage of diets fail due to unsustainability and lack of that all important tool: will power. Diet failure ensures the longevity of the diet book industry; the dieter fails and reaches for the next book to try again.

Many diets fail due to an inability on the dieters part to stick to the rules for a prolonged duration, something that most diets depend on for success. People start with an extreme determination that wanes over time, often long before the goal has been reached. So, the answer? The Fast Diet; an eating framework that allows you to eat normally for 5 days of the week and fast for 2. This is a far more likely framework¬†within which will power will succeed given that it asks for short, sharp bursts of will power rather than a long duration of self deprivation which means that, and I quote from Michael Mosley’s book ‘the majority of your time is spent gloriously free from calorie counting’. And the best bit? Fasting days still involve eating 500 – 600 calories a day, largely based on protein, fruit and vegetables. During a week, you just need to chose on which non- consecutive days you are going to fast for 2 days.

Past research led us to believe that skipping meals would lower our metabolic rate, making it even harder to lose weight. Recent research suggests that this will only occur if it happens over a prolonged amount of time. Intermittent fasting allows the hormonal cascade that allows fat burning to commence to kick in but because it is not sustained over a long period of time, it does not have a detrimental effect on our metabolic rate.

The Fast Diet is a highly accessible book which, for once, talks a great deal of sense and is based on the fundamental evolutionary basis of feast and famine and the ways the human body adapts to these states. Michael Mosely gives us enough science to educate but not so much as to lose our attention. If you are going to buy a diet book this January, buy The Fast Diet.