I watched this program, it was really interesting, what struck me was all of the people he interviewed said the same thing which is a diet will work if you stick at it & stops working when you don't, which is stating the obvious, but we sometimes forget.
I did have to laugh though at the WW guys comments, he is so true & very honest.
And what about the slim fast guy how inventive was he, he certainly hit the market right.
I think there are four programs in the series & the next is about diet food.