Experts put overweight volunteers on diets tackling the specific reasons why they eat too much. In the final two months of the diet, the volunteers' bodies are fighting back.
So far, the volunteers have successfully been losing weight, but now the honeymoon period is over. It is the final two months of the diet, and their minds and bodies are fighting back. Dr Chris van Tulleken and Professor Tanya Byron find out if the new personalised diets will help them stay on course, and the experts reveal the scientific secrets to permanent dieting success.