Ideal for active adult dogs through their senior years and good for all breeds and sizes, too. This food is equal opportunity awesome! Organic, free-range chicken is the #1 ingredient in our ORGANIX Adult Dog Food. We build on that foundation by adding organic brown rice and fresh organic fruit and vegetable purÃ©es that provide natural sources of vitamins, minerals, antioxidants and fiber. But weâre over-achievers, so we donât stop there.