Zoe has talked to me many times about being fat. I tell her she isn't fat but I am. She says "grandma, you aren't fat"................but I am. It's how she see things that is the issue. She talks to me about her fat thighs too, and I tell her that all women have big thighs and that's a good thing. She hates it though.
I hate it that she is so aware of this issue now at her tender age. I've fought this my entire adult life, and it hurts to see a 6 year old facing it so early.
I think all you can do is keep reinforcing positive things about herself. I think she basically is very secure in her beauty and self image, but one or two insensitive kids can ruin it all. Moms make the biggest impact, as you know Rachel. If my mother hadn't made weight such an issue I probably would be more accepting of myself too. Recently I said something to Mom about my weight and she said "You are just wonderful...............Please don't ever talk about yourself like that anymore". I wish she had said those things to me years ago. I'm trying but years of self image issues make a big impact.