Violet had been on the 5:2 diet for weeks now. She’d read that you could eat pretty much what you wanted on your non-fast days. So far today she’d eaten 2 KitKats, 4 donuts, a packet of jelly babies, liquorice, a tube of fruit gums and a litre of coke and it wasn’t even lunchtime! Violet loved the 5:2 diet but the *only* little problem was, she’d put on 2 stone. What was she doing wrong???