'We want to be slim. Our motivation is not in question. The advice we are being given most certainly is.'

How many of us have dieted to lose weight and then put it all back on again? Oprah Winfrey, one of America's most loved stars, has been on a staggering 674 diets, 255 fitness regimes and weighed herself 4,349,571 times over her 30-year career.

Anyone who, like Oprah, has experienced the vicious rollercoaster of losing, regaining and then putting on more weight knows that the advice we are being given doesn't work. So, what does?

Having experienced and overcome the misery of yo-yo dieting in her youth, Dr Zoe Harcombe, PhD, has focused her scientific research on food, modern eating habits and the escalating obesity crisis.

In The Diet Fix she reveals her 10-step plan for success. Using evidence-based analysis, Harcombe tells us how to lose weight without hunger, how to eat better rather than less and, most importantly, how to make this time different.