Breakfast Cereal, The Original, 29 Oz, Pack of 4 These wholesome flakes are a good source of fiber. Heart Healthy - diets low in saturated fat and cholesterol, and as low as possible in trans fat, may reduce the risk of heart disease. This delicious cereal is full of the good stuff you love, with no artificial colors or flavors. Post Grape-Nuts Flakes are a good source of 11 essential vitamins & minerals. A satisfying cereal that is high in iron and folate.