deanna lobel is a television journalist her idea was to test the gullibility of her colleagues to dothat she needed a headline nobody could resist slim through chocolate. together with her co-author peter on a can she managed to expose a sick system. our intention was to take a close look at what's happening on the nutrition and diet market we found that the argument very often goes like this off a scientific study says if this or that makes us healthy or sick this one and that we should consume more or less of it and if you take a closer look at these studies they're not scientifically repute over most of the time after that's what we wanted to document in our film something. all you need is a white lab coat and ordinary people immediately become deceptively real scientists . diet studies tend to follow a similar pattern of various groups a set up and have to adhere to different rules afterwards the scientists compare how much weight each group lost. in the case of the chocolate diet it went like this. group a was put on a diet and was given chocolate group b. was only put on a diet