I agree with Rainbow Sky - I think in theory it is a good idea to encourage healthy eating ( not punish the child) and replace the banned food with another option not let them go hungry!
For those posters who said my kid my food you can't tell me what to feed my child etc ( I think you all would probably give healthy food anyway!) but would you support another parent saying the same thing sending her kid to school every day with coke, cold burgers, fatty fried food or like a pp said just a bar of chocolate?
I would assume the strictness is not for the average mum who sends a muffin but the one who really has no clue and truly sends rubbish food daily? Some parents do need to be told what is healthy