From my own experience with very painful arthritis and swollen knees, I can only recommend it. The combination with MSM and chondroitin, however, even better, because in a short time enormous improvement has occurred. After three weeks I was completely pain-free. I have it but regularly, pause a few days time is ok. The only why a star is less that I have received the glucosamine powder only in light tan color and the second time it was a white powder. So I was to have received the correct filling uncertain. Since I ordered on stock, it is only now noticed. Too late to return. And Vita Natura can be reached very poor customer continuous loop with unpleasant long-lasting beep. Otherwise, I am very satisfied with the products.