What Foods Contain the Most Fiber?

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Foods with the highest fiber content include apples, berries, legumes, nuts and seeds, some cereals, grains and pasta, and vegetables like artichokes, green peas, broccoli and turnips. These foods contain the highest amount of fiber per serving, but vary in the amount of fiber they pack. In the category of nuts, legumes and seeds, 1 cup of cooked split peas and lentils yields the highest level of fiber at 16.3 grams and 15.6 total grams of fiber, respectively.