Niu Bang Zi (Great Burdock Fruit)

Chinese Herb Actions

Chinese Herb Dosage

• What is the typical dosage of Niu Bang Zi?

  Commonly 3–9 g in decoction, the range given in Sacred Lotus sources & references and consistent with standard materia medica. It is usually lightly crushed or cracked before decocting to release its active constituents from the hard seed coat.

  • Part used — the dried ripe fruit (commonly called the "seed"), not the root.
  • Processing note — a lightly stir-fried (dry-fried) form is sometimes used to reduce its raw pungency for patients prone to loose stools while retaining its throat- and rash-venting action.

  Source: Sacred Lotus sources & references; cross-referenced against multiple online sources. Reference only — not a prescription.

Chinese Herb Contraindications & Cautions

• Are there cautions for Niu Bang Zi?

  Avoid in cases of qi deficiency, loose stools/diarrhea, or where there are open (draining) sores. Niu Bang Zi's intestine-moistening, slippery quality — useful for wind-heat constipation — is precisely why it is unsuitable for patients whose digestion already runs loose.

  • Loose stools or diarrhea — avoid; its moistening action on the intestines can worsen loose bowels.
  • Qi deficiency — use with caution, as its dispersing, venting nature is not tonifying.
  • Open/draining sores — traditionally avoided in this context per Sacred Lotus sources & references.

  Source: Sacred Lotus sources & references; cross-referenced against multiple online sources.

Western / Biomedical Research

Chinese Herb Clinical Studies & Research

Provided as research context — a summary of published biomedical study, not a therapeutic or medical claim.

• Is there modern research on Niu Bang Zi (Arctium lappa fruit)?

  Yes — a substantial body of preclinical (cell and animal) research exists on Arctium lappa fruit and its principal lignan constituents, arctiin and arctigenin, spanning anti-inflammatory, antiviral, and other pharmacological activities; human clinical trial evidence specific to the whole fruit remains limited.

  • Anti-inflammatory (preclinical) — in a mouse model of induced colonic inflammation, arctigenin (but not arctiin) markedly reduced inflammatory markers and tissue damage, with effects comparable to a standard anti-inflammatory bowel-disease drug in that model.
  • Antiviral (preclinical) — an extract of Arctium lappa fruit showed antiviral activity against Herpes simplex virus type 1 in cell culture, with potency approaching a standard antiviral drug at higher concentrations and no toxicity to the cells tested.
  • Comprehensive review — a 2023 systematic review of Arctium lappa fruit covering botany, phytochemistry, pharmacology, and toxicity reports over 200 isolated compounds with anticancer, antiviral, and anti-inflammatory activity, and notes that whole-fruit extract showed no toxicity in the studies reviewed, while the isolated constituent arctigenin was toxic at higher, concentrated doses — an important distinction between the traditional whole-herb use and isolated-compound research.

  This research is consistent with, but does not clinically prove, the herb's traditional wind-heat/sore-throat use, and should be read as research context only.

  Sources: PMID 36781057 (Journal of Ethnopharmacology, systematic review); PMID 25284342 (International Immunopharmacology, arctigenin colitis model); PMID 28780467 (Biomedicine & Pharmacotherapy, antiviral/schistosomicidal activity). Preclinical research context, not a therapeutic claim.

Chinese Herb Notes

• Is Niu Bang Zi the same as Western burdock root?

  No — Niu Bang Zi is the dried ripe fruit (seed) of the burdock plant (Arctium lappa), while Western/culinary and Western-herbal burdock almost always refers to the fresh or dried root. Both come from the same plant, but the fruit and the root are different plant parts with different traditional actions and are not interchangeable.

  • Niu Bang Zi (fruit/seed) — spicy, bitter, cold; disperses wind-heat, benefits the throat, vents rashes, moistens the intestines. This is the part used in Chinese medicine formulas such as Yin Qiao San.
  • Western burdock root — used in Western herbalism and as a root vegetable (e.g. gobo), traditionally regarded there as a mild diuretic and "blood purifier"/alterative for skin conditions — a different part of the plant used for a different purpose, and not the herb referred to by Niu Bang Zi.

  Confusing the two is a common labeling issue in Western herb shops, since both are sold under variations of the "burdock" name; when sourcing Niu Bang Zi for a Chinese medicine formula, the fruit/seed is the correct part.

  Source: Sacred Lotus sources & references, cross-referenced against multiple online sources (materia medica part-of-plant identification).