I wrote about in the 100 lb club BUT...
I was a 300 lb 14 year old. My mom was frustrated beyond belief and took me to see many doctors and nutritionists from a young age (9 or 10). She cooked "healthy" foods. There were always veggies, although sometimes covered with cheese. There were lots of salads. Lots of lean meats. I don't remember processed foods at all. There were no Spaghettios or Hamburger helper. There were no fast food lunches. I remember lunch at the mall being a salad at the Carl's Jr salad bar. (Although I did have a love for ranch dressing). I do just remember eating a lot and sometimes I'd sneak food, even fairly healthy food. Christmas time did mean cookies though, homemade cookies. Sadly, it still means homemade cookies by my mother
I was an active kid as well, swam, ran, rode my bike, etc.
Not that I've seen the show (I don't have cable), but it is disheartening to see them show kids that have really poor eating habits and are obese. It isn't always that way. Though parents should teach their children to eat vegetables although not all parents eat vegetables themselves. Part of it is setting an example for their children.