Sunflower seed kernels are the edible seeds that are found inside the shells of sunflowers. When shelled, the kernels are oval in shape and range in color from white to black, with a light-brown color being most common. They have a slightly crunchy texture and a mild, nutty flavor. Sunflower kernels are rich in nutrients, including healthy fats, protein, vitamins and minerals. They can be consumed on their own as a snack, added to salads or baked goods, or used as an ingredient in a variety of dishes.