Best Blend is formulated with over 28% black oil- and striped sunflower seedsthe ingredients songbirds of all sizes and varieties prefer! Plus weve added aroma-filled shelled peanuts, a delicacy songbirds enjoy, and natural white proso millet and gourmet cracked cor. These are excellent sources of complex carbohydrates that provide the energy needed to deal with harsh outdoor conditions. This blend is filler-free and includes the three ingredients songbirds love to eat!