Excellent variety, including our advanced formula Complete Crumble Diet loaded with vitamins, minerals and all the essential amino acids. We then add a taste tempting assortment of fresh, clean naturally nutritious enzyme rich Seeds (we use an abundance of the "fox tail" family of millet; these very small seeds are relished by finches), Whole Grain plus Carrots, Sweet Potato and Spinach. Unlike many companies, we choose to package all of our products in Oxygen filled packaging to ensure enzyme rich seeds and grain to optimize the nutritional value. We do not Nitrogen flush or Vacuum pack our products which evacuates the oxygen to increase shelf life. Whole Seeds & Grain should always be stored in an oxygen filled environment to maintain their live enzyme activity and viability. Enzymes are CRUCIAL in aiding the digestion and assimilation of most nutrients. Taking away the oxygen will kill the live enzymes and reduce the nutritional value.