Osteoarthritis supplements: the evidence is a mixed bag.

Research does show boswellia can reduce joint pain, but the effect may be short-term only, so it's not a long-term fix. The enhanced-bioavailability curcumin claim hasn't been directly tested, though other research on turmeric extract found it helped knee pain within a week and for three months. Glucosamine isn't as useless as the post suggests—one study found it eases knee pain for the first three months, just not after that. Fish oil, on the other hand, does appear ineffective for osteoarthritis pain. For dogs, the evidence on glucosamine is genuinely split, with some studies showing benefit and others no better than a placebo.