[header] How to lose weight as a preteen [title] Start your day with breakfast. [step] It should be the largest meal, as it provides you with energy for the day. Find low-calorie, healthy foods that contain nutrients, such as oats and orange juice. 
You can still have your favorite breakfast foods, but cut down on the amounts that you take in order to balance out your calories. For example, if you want pancakes and yogurt, give yourself three pancakes, a cup of low-fat yogurt, and about three tablespoons of maple syrup.