What’s the Bottom Line? What do we know about the effectiveness of complementary health approaches for osteoarthritis? Nutritional Approaches • Even after many studies, it remains unclear whether glucosamine and chondroitin meaningfully improve osteoarthritis symptoms or protect joint structure. • For most other dietary supplements, there is not enough reliable evidence to draw firm conclusions. Psychological and Physical Approaches • Acupuncture may provide relief from osteoarthritis pain for