A Complementary Pet Food for Dogs. Good Boy Glucosamine Chewies have been specially formulated to provide a tasty and highly concentrated formula with each chewy bite containing a wide range of ingredients which may help to support joint function and an active lifestyle. With glucosamine and chondroitin plus the clinically approved ingredients hydro-P premium to promote mobility and Boscurin to relieve inflammation and give cartilage protection, these chewy bites can help joint health and mobility. They also contain vitamin C, vitamin E and salmon oil (as a source of omega 3 fatty acids) which help fight inflammation. Given daily, they may help to alleviate joint stiffness and discomfort in pets.