Calories In and Calories Out

I was just thinking about a good, easy example to show how burning more calories then you eat doesn't result in weight loss. It was difficult because if you do burn more calories and build muscle then you become a more efficient user of energy and usually become a more active person and won't store as much extra sugar as fat. Then I realized that America has tons (sorry about the pun) of fat kids. We all see kids, fat or otherwise, running around and playing and burning all those calories but they are still fat. In addition, these fat kids are burning calories growing taller, but they are still fat. I don't know for sure but I would bet growing uses a LOT of calories. How can kids who are active AND growing get fat if burning more calories then you eat supposedly results in weight loss?

The answer is what I posted on below, weight control is more about chemistry then calories. The fat kids are eating processed carbs and probably TONS of sugar in juice boxes, regular juice, snacks and low fat foods. All processed for a longer shelf life not maximum nutrition. Remember, there are 4 grams of sugar per teaspoon of sugar. Check the sugar content on your juice. There are 28 grams of sugar per 8 oz serving in the juice in our fridge so that's 7 teaspoons of sugar per serving. YIKES!