I have suffered from two broken bones in my fifties that were not set properly and did not heal well. In the high humidity and in the bitter cold especially , my joints swell even more and I can feel the metal plate in my leg and can actually count the screws as they are pressed closer to my skin from the swelling and inflammation . As an arthritis sufferer, I turned to Spring Valley Glucosamine and Chondroitin for some relief on really bad days . I have tried other Glucosamine and chondroitin products such as Osteo Bi Flex and Flex a min ,etc but this Spring Valley product has a greater doseage of the two supplements and brings far more relief . Anyone who suffers from osteoarthritis will find relief from this product - these two supplements were originally used on lame horses and were found to provide excellent results and then a formula was devised for human consumption . I could not even move on some days if I did not take this product which gives me my mobility back .