It's not that difficult to hit the 7, though given our national not very healthy approach to eating, it takes some thinking about. some fruit with breakfast, or at 11 o'clock, big mixed salad for lunch and some form of vegetarian main meal, or alternatively meat/fish with loads of veg or salad. It's a great pity that fruit and vegetables are so expensive in the UK. So much of it's imported of course, but even so, our own stuff it hugely expensive in comparison with lots of other european countries. I suspect cost to be a real problem for many families.