J.P.
Can you take walks in the afternoon? I would also look into getting a kid exercise video so that it will be fun for her, they are low impact so you can do it together. I think the best thing we have is the Xbox with the sporting games. You really have to move around a lot and that is fun exercise for her (and me). My daughter is chunky and tall and always will be (genetics, she has her dads build) but she slimmed down quite a bit in her first year of kindergarten. Living in Florida we don’t go outside too often in the summer except in the pool, but we don’t go swimming every day.
My daughter eats a lot of fruits and veggies and doesn’t eat large portions at meal times. I do not buy junk food like chips, cookies or candy. She does have them once in a while but that is usually when we are out. She also doesn’t drink soda and I limit her juice. Try to stay away from artificial sweeteners, foods with preservatives and if you can get organic fruits and veggies (no pesticides). I also stay away from High Fructose Corn Syrup, they say it’s safe but with so many people having type 2 diabetes I don’t doubt that this is a contributor. I stopped eating foods with it and my blood sugar has made a drastic drop.