Operation Tone-Up® socially changes the way children choose food and exercise to help PREVENT child obesity & diabetes. http://atchallenge.org The Accept The Challenge Mission is to respond to our nation’s number #1 health risk, “childhood obesity,” by empowering youth, with accurate nutrition and exercise knowledge, and teaching them how to apply this knowledge to socially change the way they choose food and exercise to improve their health and change their lives. Our Goal is to ensure that all children can be exposed to accurate nutrition and exercise knowledge to improve their health.