I watched most of the programme and agree with Silverbelle, the diets work, but leave people without the tools to continue once they get to their desired weight. Cutting out certain food groups, counting points etc. interferes with life and gets boring, therefore people ultimately fail. However I am not so sure I totally agree with Wendy's "vulnerable people being manipulated". We are all independent adults putting food into our shopping baskets and ultimately our mouths. We need to take responsibility for our own health, stop blaming society, the government, the weather! If we are fat its because we are taking in more fuel than we are burning up. Noone came out of Belsen fat!
