Classic nutriberries for parrots are nutritionally balanced like pellets, just not ground up. Both pellets and nutriberries contain seeds and grains. In pellets, they are finely ground into powder before being formed into a pellet. Most seeds and grains in nutriberries are kept whole because Dr.Lafeber discovered how to nutritionally balance them like pellets without grinding. By hulling the seeds and grains and then coating them with stabilized vitamins, chelated minerals and amino acids, your bird receives premium nutrition. Plus, unground seeds and grains provide the benefit of whole foods like parrots in the wild.