It would show us as a pretty pathetic nation if we had to rely on our government to tell us what to eat!
For goodness sake, as adults we are responsible for what we eat and what our children eat. Like most of you have already said it is down to laziness that what should be treats i.e. a McDonalds, sweeties, are given everyday, more than once usually.
My SIL was worried about her ds's (aged 7) teeth, she gives him two Mars bar size bars of candy everyday after school. No wonder his teeth are rotting.
I understand some find the advertising a problem. Everything in moderation though, eh? I am lucky that so far ds twins are too young to bother about all the consumerism. In fact I am very lucky that when they sneak into the kitchen for snacks it is usually an apple they go for(other times it is grapes or whatever fruit I have in.) I have the argument ready for when they are older and they will have to eat "real food" before getting any junk!
Yes they get crisps, yes they get sweets. As treats. Every now and then, not constantly.
If the government wants to do anything then it should see to the added salt and sugar in packaged foods. I couldn't believe it when I found out the amount of sugar in childrens yoghurts! That should be stopped, I give my two the yoghurts where sugar isn't the first ingredient and they like them just as well.
Apart from that they could also make more sports facilities available. We have good swimming pools here and it is quite good pricing. Really though, it is up to everyone to eat properly, get off their big backsides and do something for themselves.
(And I do have a big backside, my fault and only I can do something about it - and I am.)