Large-leaf Gentian

botanical
Best with a meal

What is it

Large-leaf gentian (Gentiana macrophylla), known as Qin Jiao in Chinese herbal medicine, is a perennial whose dried roots are used for joint pain, fever, and inflammatory conditions.

Evidence for 1 use

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

Joint and inflammatory complaints

Mixed

Traditional use and preclinical data support anti-inflammatory effects, but rigorous English-language human trials of the single herb are lacking.

How it works

The root contains secoiridoid glycosides such as gentiopicroside as well as triterpenes. Animal studies suggest anti-inflammatory, mild analgesic, and immunomodulatory effects, possibly through inhibition of inflammatory cytokines and prostaglandin pathways. High-quality human trials are limited. Most clinical evidence is in Chinese-language publications evaluating combination herbal formulas rather than the isolated herb.

Dosage

Traditional decoctions use roughly 3-10 g of dried root per day. Commercial extracts vary in concentration. The DSLD does not report a single standardized dose.

When and how to take it

Often taken before meals in traditional practice to stimulate digestion, or with food to reduce stomach upset.

1 commercial form

Dried root extract

Gentiopicroside is the typical marker

Standardized or unstandardized dry powdered extract of the root.

Safety

Generally well tolerated short term in traditional doses. Bitter taste may cause nausea or stomach upset. Long-term safety, especially with concentrated extracts, has not been well studied.

Who should be cautious

Avoid in pregnancy and breastfeeding. Use with caution in autoimmune conditions, with immunosuppressants, or with stomach ulcers, since bitter compounds may stimulate gastric acid.

Interactions

Theoretical interactions with anti-inflammatory drugs and immunosuppressants are possible. Specific clinical interaction data are not available.

Frequently asked questions

Is Qin Jiao the same as common gentian?⌄

It is a related species (Gentiana macrophylla), but not the same as European common gentian (Gentiana lutea) used as a digestive bitter.

Does it help arthritis?⌄

Traditional use is for joint and rheumatic symptoms, and animal studies are supportive, but well-controlled human trials are limited.

References

  • Large-leaf Gentian on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link
  • Research on Large-leaf Gentian (PubMed search) — PubMed link

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Evidence-based·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.