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Oatmeal
Starting your day with a fiber-packed breakfast will help you feel full until lunchtime. Oats are a fantastic way to get the fiber you need, but not all oatmeal is created equal. Start with old-fashioned oats – a half-cup serving has four grams of fiber. To make it extra filling, prepare it “growing oatmeal” style with twice the liquid and double the cook time. That’ll give you a gigantic portion. For even more fiber, top it off with tons of fresh fruit.