Obesity in America

i am currently a high school student at York Suburban High School. I participate in many physical activities to keep my body physically fit. As i walk down the streets of many cities I visit. I always see a bunch of over-weight people. It is more than less unfortunately. I wish i could do something about it because i care a lot about peoples health. I think there needs to be more restrictions on what people eat, and what Americans can buy to eat. Because the problem of obesity is dramatically growing, and if the United States government does not do something about it now, it is going to get worse. Unfortunately people have already grown into their habits, and it is going to be hard for them to get rid of them. There should be some kind of award if you lose so much weight if you are classified as obis. Most Americans only will do something if they can get an award, so why not? Why not help someone lose weight, instead of spending government money on something that is not needed?