Don’t allow yourself to get over-consumed with maintaining a low to no-fat diet. Many people kill themselves unneccessarily to avoid any and all fat from their foods. Calories, not fat, are what dictate weight gain. Something else to keep in mind: many low or no-fat foods make up for their lack of flavor with sugar. Be sure to read these food labels carefully. While it’s true a gram of fat is more calorie-dense than a gram of protein or carbohydrate, by learning to eat in moderation you can enjoy a happy and healthy diet.
Check the USDA My Pyramid plan for a very basic idea of what (and how much) of each food group you should be eating.