Each Paw Osteocare Chew Contains 500 Mg Glucosamine Sulfate To Provide Cartilage Nutrition For Joint Cartilage Health And Joint Function And 250 Mg Chondroitin Sulfate, A Major Component Of Joint Cartilage And Is Required For Cartilage And Joint Health.Paw Osteocare Chews Also Contains Other Ingredients Such As Msm And A Balanced Blend Of Vitamins And Minerals That Work Together To Maintain The Health Of Your Dog’S Joints.