Chondroitin May Ease Knee Osteoarthritis Studies of the supplement chondroitin, a natural component of cartilage, for osteoarthritis have produced mixed results on their effectiveness. A recent study, published in Annals of the Rheumatic Diseases (May 2017), found that people with knee osteoarthritis who took a prescription-grade form of chondroitin for six months had similar pain relief to people taking the nonsteroidal anti-inflammatory drug celecoxib (Celebrex). The study included 604 people with knee arthritis who took either…
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