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Many teenagers are concerned about or gaining . To lose weight , look at your diet . If it has lots of or foods , replace them with , vegetables , and . If your diet already seems healthy , try to get more exercise - by walking , or swimmng daily , for example .
If you are trying to weight , you will need to eat more food . Perhaps eating more often or eating foods somewhat higher in and in bulk will help . Try to eat three or more times a day whether you are trying to gain weight or lose weight . It is hard to get all of the food you need if you only eat one a day .