I hate the idiotic policies on this at my DS's primary school. No nuts is fair enough, there's a LOT of dc there with nut allergies, that's fine.
But even if they have a cereal bar for their snack at break - it isn't allowed to even have a drizzle of chocolate on the top. The weetabix Oaty bars are the lowest sugar, least 'bad' cereal bar I can find for the dc - but they are not allowed them - OR Go Ahead bars - because of the drizzle of chocolate on the top.
If they have 'cheap' ham then their sandwich gets confiscated - something to do with too much water and nitrates in it - but the school are not exactly queueing up to PAY for naice ham...no jam, no chocolate spread, no cheese spreads either - including philly. No white bread. No home-baked flapjacks or biscuits or cakes. No Crisps - ever. No processed cheese (don't disagree with this one too much tbh, what's wrong with a block of cheddar or red leicester?), no meat snacks ( i.e. pepperami etc).
Schools suggested lunchbox - Wholemeal pasta salad. Carrot sticks and houmus. Two different fruits. Water.
Yet the school dinners that I inevitably end up sending my dc's for, as it is bloody impossible to put together a lunchbox that both meets the school's 'healthy eating' criteria, AND is filling enough for very active children, AND my DS2 will actually eat (food issues, he has asd), well the dinners have a cake of some sort with custard for pudding every day - and the portion sizes are so small that my 9yo (very tall, size of most 12yo's) is chewing his own arm off every day by the end of school. Even with an apple and a cereal bar at break, and a huge bowl of cereal in the morning.
On a Tuesday, my 9yo DS1 has swimming in the morning, Outdoor PE in the afternoon, and 90 minutes of football after school. I have to take almost a full packed lunch to eat on the bus home!
Why the school can't accept that it would suit me, on a Tuesday, to be able to send DS1 in with a packed lunch - with some higher calorie food, as he is doing sport for the best part of the day, is utterly beyond me. I don't think that telling dc that all sweet food is bad is helpful either - I truly believe that you can eat what you want as long as it is in moderation is a much healthier way to live!