It contains a fair amount of dietary fiber, calcium, potassium, amino acids. It contains a polyphenol oxidase, which causes its darkened surface and muddy harshness by formingtannin-iron complexes.
Burdock is believed to be agalactagogue, a substance that increases lactation, but it is sometimes recommended to be avoided during pregnancy based on animal studies that show components of burdock to cause uterus stimulation
Folk herbalists considered dried burdock to be a diuretic, diaphoretic, and a blood purifying agent.
Burdock is a traditional medicinal herb that is used for many ailments. Burdock root oil extract, also called Bur oil, is currently used in Europe under the belief that it is a useful scalp treatment. Modern studies indicate that burdock root oil extract is rich in phytosterols and essential fatty acids.