The @stephennolan diet exposed by @DrMichaelMosley

If you were watching last night's show you'll have seen Stephen's special guest - Dr Michael Mosley -the man who is most closely associated with one of the most famous diets around at the moment. The 5 / 2 diet is based on the idea that restricting your food intake on two days out of seven is the best way to control your weight. Stephen started by asking him about the 5:2 diet