Which diet ACTUALY works?

does special k diet actualy work? or which one for a fat 13 year old?

The only way the special K diet could ever possibly work is if you were a robot. Special K doesn't have the nutrients that you need to keep your energy up to burn calories and fat nor does it give you a full feeling that can keep you from binge eating.
*You need energy all day long. Eating small portions even snacks that are low in fat and calories can keep you going. When your tired and don't feel good you might even turn to food to comfort yourself.
*Binge eating is bad, it is a vicious horrible cycle that doesn't do your body any good. It also can mess up your metabolism. Metabolism is good.
*Stick to eating habits that are healthy. Always eat what you want now (portion it) or you will have what you want times 200 later. Don't deprive and work hard (exercise).