Oh it's all so familiar! I remember going on a study trip when I was seventeen - 1992 - and we had to choose our menus for the week - the conversations between the girls were all "oh are you watching your weight too?" It was so normal to see life revolving around our body images. And yes, totally relate to having to break the negative cycle that my mother's generation drummed into us.
I love seeing my girls enjoying their food - and they are very healthy with it, but certainly don't hold back on portion sizes. As for Brandy, thankfully she's not a thing for my girls and I've never heard of her.