The largest NIH trial on glucosamine and chondroitin found no significant pain relief overall. Here's what the 1,583-person GAIT trial actually showed.
osteoarthritis
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Turmeric for Joint Pain: What an 8-Week Placebo-Controlled Trial Found
An 8-week randomised trial found curcumin eased knee osteoarthritis pain more than placebo, but NIH warns enhanced-bioavailability curcumin can cause liver damage.