Burdock Root
Arctium lappa
Also known as: Great Burdock, Gobo, Bardane
Overview
A traditional blood purifier used in Western herbalism, TCM, and Ayurveda. The root is rich in inulin, a prebiotic fiber, and also contains arctiin, a lignan. Two small human trials of whole burdock root — one using a tea, one a root powder — found reductions in inflammatory and oxidative markers including CRP and IL-6. Anti-tumor effects of burdock lignans have been seen in cell and animal studies; human cancer research has not progressed past early safety trials.
Proposed mechanism
Burdock root is rich in inulin, a fermentable fiber that feeds beneficial gut bacteria such as Bifidobacterium. Gut bacteria also convert burdock's lignan arctiin into arctigenin, which inhibits NF-kB and lowers inflammatory cytokines like IL-6 and TNF-alpha in cell and animal studies. Two limits matter: arctigenin is extensively broken down in the gut and liver after oral dosing, so how much reaches any tissue at food or supplement doses is unknown, and no study shows this pathway acting on or strengthening lymphatic tissue — that framing comes from traditional herbal writing, not from the NF-kB research. Small human trials of whole burdock root did find lower inflammatory markers (IL-6 and hs-CRP in knee osteoarthritis; CRP in PCOS), but those trials measured blood results, not this mechanism.
Mechanisms describe how researchers think a compound may act, often from laboratory work — a proposed mechanism is not proof of a clinical effect in people.
Traditional & studied uses
Related pathways
Pathway tags are a research aid for browsing the glossary — they are not a claim that this ingredient treats any condition.