I had enough of that programme after about 5 minutes. Now I'm watching a BBC2 programme on child obesity. It appears the cause is due to supersize junk food, although there are variables. Also surprisingly, normal weight kids are hardly less active than they were 20 or so years ago. Kids already carrying extra weight are pro rata less active. Common sense. Supersizing and multi-buy is doing our health in. Are parents to blame..? Well, parents are up against a social media and advertising agencies that can wipe away any good advice or health rules that even the most responsible of parents can manage to get across to their darlings.
This is nothing new. Nutritional experts and scientists have long known about this, but successive Governments turn a blind eye because the UK Food Agencies and Supermarkets are such powerful bodies.