In summary, the research suggests consistently that glucosamine (and especially in combination with MSM) has a positive effect on may people with arthritis. It is not successful for everyone, of course, and there are conflicting studies that may relate to other factors, dose and time. Glucosamine + MSM has been shown to be as effective as the more expensive chondroitin in several studies. The recommendation is consistent across the research that the supplement must be taken at prescribed dose for 90 days to judge effectiveness and it is worth a try!
The addition of Bromelain has added research for arthritis and inflammatory pain (Our recommendation includes taking this supplement with Turmeric for a complete formula for those with arthritis).
Glucosamine and chondroitin for osteoarthritis.
A complex of three natural anti-inflammatory agents provides relief of osteoarthritis pain.
Natural Products for Promoting Joint Health and Managing Osteoarthritis.
Use of glucosamine and chondroitin supplements and risk of colorectal cancer
Molecular mechanisms of anticancer effects of Glucosamine.
The Fate of Oral Glucosamine Traced by (13)C Labeling in the Dog.
Evaluation of the effect of glucosamine on an experimental rat osteoarthritis model