I watched the programme - I'm a graduate biologist. I'm not a nutrition expert but I have been learning quite a bit over the last 30 plus years and I have to ask - was that a spoof? There were so many contradictions in the programme. At best it looked like a lot of opinions from different people with opposing opinions.
There was one fact - if calories in exceeds calories out, you will gain mass. (Physics)..... any other facts were obscured by some outrageous and misguided statements.
Sorry for sounding negative - on balance - probably dangerous to anybody who was looking for guidance on loosing weight