How strong is the evidence for Curcumin?

A GRADE-assessed dose-response meta-analysis found curcumin supplementation reduces inflammatory and oxidative stress markers, an effect replicated across specific populations including people with chronic inflammatory diseases, metabolic syndrome, non-alcoholic fatty liver disease, and chronic kidney disease. That evidence is currently rated moderate (58/100), built on 10 published studies, including 10 meta-analyses -- a reasonable base, but not yet enough for full certainty.