I am a PGA golf Professional living in the State of Maryland. I used to play some tournament golf and my knees hurt. During one particular tournament, I was walking off the green and my right knee suddenly wrenched with pain. I immediately made an appointment with one of the best orthopedic surgeons and sports doctors that I could find. After looking at my MRI’s, the Dr. said that I would most likely need surgery but he wanted to try therapy first. He also stated that I should start to take glucosamine. I called my Chiropractic friend, Dr. Bill Erbe, and asked about the glucosamine. He recommended ArthroAid as the very best. (I might point out that Dr. Erbe was the PGA consulting sports doctor at that time.) So I started the therapy and taking the glucosamine daily. I have now taken ArthroAid and ArthroAid Plus for all these years. It took around 90 to 120 days for full recovery but most importantly: NO SURGERY.