tricky one but I think this could be a culture thing. I don’t think it’d ever work in the UK cause our culture doesn’t allow for this. people don’t like being told what to do. It’s like when Jamie Oliver tried to change school meals and parents fed their kids McDonald’s through the fence. imagine these people having a phone call to say a nutritionist wants to help them cause their kid is overweight.It has changed because people are more aware of it now, I cannot eat yoghurt now as I cannot eat dairy but when I did eat greek yooghurt the lower fat ones had higher sugar contents. Also it is proven that fat and protein fill you up whereas sugar and just carbs don't. Obviously eating loads of fried food etc isn't the same as eating full fat milk or cheese though.
As has been said though it is really complicated. Not sure it has been mentioned, but in Dutch schools they have weigh ins regularly for students at school and if they are overwweight a nutritionist will go to their hosuse to talk to the parents, what do we think about this?