I have a younger sister who is still in high school. Acutally she is very pretty I would say. She lives quite far away at mom's and dad's house and that is why we don't see each other very often. But when I saw her the last time I was quite shocked. She got a very fat belly and she is still a teenager. I really don't want her to look like me when she gets older and so I talked to our mom. She said that it was the food at school which made her becoming so fat. Is the food at school really that unhealthy? What would you suggest a teenager to do who probably has fast food for lunch every day!