I hadn't thought about it that way, Colinsmum...
We don't really talk about weight loss with the kids, but they really can't help but be aware of the changes we've made. I've tried really hard to emphasize that we're trying to "help Daddy's blood get better, etc." I suppose she could be connecting the dots with the health problems and resolving herself never to be in our situation. *sigh* Maybe in trying to send the right message, we've scared her??