Greenies Senior Is Such A Great Thing To Do For A Much Loved Older Dog. Same great flavor, teeth cleaning and breath freshening the younger kids get. But, Senior is easier to chew, easier to digest and has extra ingredients to soothe old, tired joints. Treat your old faithful today. 83 kcal/treat. Crude Protein not less than 19%, Crude Fat not less than 4%, Crude Fiber not more than 5%, Moisture not more than 18%. 12 treats in a 12 Oz. bag.