Fiber One Original
120 calories, 28g fiber, 4g protein, 0g sugar
Fiber One may have a bad rap for being your grandmother's cereal, but this 100 percent whole grain twig is low in calories, void of sugar, modest in protein, and overwhelming in fiber, with a whopping 28 grams per cup. Don't want that much fiber? Blend a ½ cup of this twiggy bran into a flake-based cereal for a fiber- and flavor boost.