As a child of her age in the early 70's , we didnt have snacks or treats
We were given 3 meals a day , and built up a hunger for them so we ate what ever was put in front of us
Biscuits were for Sundays , 2 plain, 1 fancy , from the tea time selection
We as children would never have helped ourselves to food If we were hungry we would have to say and were given an apple/banana or slice of bread and butter
Is your daughter actually eating her meals? Does she enjoy the meals and clear what's served or push it around the plate and then complain later she's hungry
When I inherited Step children, I had some battles on my hands around what I thought they should eat, and what they would eat . So in the end meals were always serve yourself . So one liked carrots, another liked peas, one would eat breast meat, another only liked legs . I put enough food down that everyone should eat their fill - so there was no raiding the cupboards as they were so used to after dinner having not eaten enough
My wee sister would and still could demolish a pack of biscuits alone with a mug of tea, and I found out recently I could as well - for me it was a one off and I still feel sick just thinking about it I myself can inhale a bar of chocolate and not even register eating it - if Ive not eaten enough at meal times