my dd is almost 9. she is a sturdy build and is fractionally above her ideal weight. in a differnt family she would be very overweight, i'm sure 
we are a very healthy family, food wise. i am a bit of a lentil weaver, but do have a sweet tooth. the dc rarely have junk food and we only usually have very healthy food in the house.
however, it is a constant struggle with dd to get her to eat more fruit and veg. she just wants to eat carbs and lots of them!! i try to up her protein intake to fill her up. she wolfs down her food and then wants more. i try to educate her about child size portions, eating slowly, eating 5 a day and stuff like that, but i find still myself saying 'no' or 'you dont need that' to her constant food requests.
its waring for me and i worry about having these constant dialogues with her about food.
i dont want her to develop food issues in later life, but food just seems to be taking up too much our attention.
i never ever tell her she's greedy or that she'll get fat, for obvious reasons, but she is very grasping in relation to food, which upsets me. for instance, always reaching for the biggest portion instead of taking what's closest to her.
yesterday we were leaving a cafe and we had our coats on ready to leave. she stopped on her way out, with coat on, and shovelled a fork full of beans from her sister's plate into her mouth before leaving

we are a family who show love, affection and who know about nutrition. i think dd has a predisposition to food issues, and am worried about 'getting it wrong' and making things worse.
any advice?