She's 3.6. All day long it's "I'm hungry". She eats breakfast and lunch well but picks at dinner unless it's sandwich type bits or fish fingers.
Usually she has cornflakes for lunch, a cereal bar or some breadsticks for snack, sandwich, handful of crisps, cucumber, fruit and yoghurt/cheese for lunch and then another snack. Dinners are fish cakes, fish fingers, pasta dishes, sausage and mash etc. not ideal but fussy DCs who won't eat food in sauce 
This morning she's had Cheerios with a glass of milk, a small freddo chocolate bar, another glass of milk and a cereal bar (in my defence for the crap we are waiting for the tesco man!)
She is still saying she's hungry. How can she be hungry? She's not fat. She's quite solid and tall but 3-4 jeans need adjusting at the waist or they hang off her.