I am despairing at the constant cries of 'I'm hungry' 'Mum can I have a snack'. They are both good eaters and I try to encourage healthy eating, cook from scratch etc. but they are permanently in the biscuit tin or with their noses in the fridge in between meals. Is this normal for 7&10 year olds? I am just a bit concerned about contact snacking habits or maybe they are just growing and need more food.