Hu Lu Ba (Fenugreek Seed)

Chinese Herb Actions

Chinese Herb Dosage

• What is the typical dosage of Hu Lu Ba?

  Roughly 3–9 g in decoction — the owner’s notes give 1–3 qián (about 3–9 g at ~3 g per qián), consistent with standard materia medica ranges of about 3–9 g (occasionally cited up to ~10 g under practitioner guidance).

  Processing changes the emphasis:

  • Raw (sheng) — standard warming form, expels lurking cold qi from the lower body.
  • Dry-fried (chao Hu Lu Ba) — less bitter, leans more tonifying for deficiency-cold with abdominal fullness.
  • Salt-fried (yan chao Hu Lu Ba) — the classically preferred form for directing the herb to the Kidney and strengthening yang tonification; favored for testicular pain, impotence, and cold low-back pain.

  Source: owner’s Five Branches notes; cross-checked against multiple TCM materia medica references for dosage and processing. Reference only — not a prescription.

Chinese Herb Contraindications & Cautions

• Are there cautions for taking Hu Lu Ba?

  Hu Lu Ba is traditionally contraindicated in yin-deficiency heat and damp-heat patterns — consistent with its warming, drying nature, sources across TCM materia medica agree it is unsuitable where heat signs or dampness-with-heat predominate.

  • Pregnancy — traditional and modern sources describe a uterine-stimulant/emmenagogic effect; used with caution or avoided in pregnancy.
  • Legume-family food allergy (reference note) — fenugreek is a legume (Fabaceae) seed; documented cross-reactivity with peanut allergy means individuals with peanut/legume allergy should be aware of it as a potential allergen (see research).

  Source: owner’s Five Branches notes (contraindications: yin deficiency, damp-heat); cross-checked TCM materia medica references; allergy research (below). Reference note, not medical advice.

Chinese Herb Toxicity & Overdose

• Low. Fenugreek is a widely eaten food spice/seed with a long dietary history; at typical culinary and materia-medica doses it has a low-toxicity profile. Reported adverse effects are mostly mild — gastrointestinal upset, and a harmless but distinctive maple-syrup-like body/urine odor — plus allergic reactions in sensitized individuals (see drug interactions/research). Clinical trials using higher, standardized extract doses for glucose research report no significant liver or kidney toxicity signals, though those doses exceed typical TCM dosing and are cited for reference only.

  Note: the current Sacred Lotus flags this herb under the site’s combined “toxic/endangered” category (a bucket that also holds true toxic substances like aconite and endangered/restricted animal parts like rhino horn and tiger bone). Fenugreek’s actual toxicity and legal-availability profile as a common food-herb does not match that grouping; we have not altered the flag and are surfacing this for owner review rather than guessing at the reason it was set.

  Source: materia medica consensus on fenugreek as a food-herb; clinical-trial safety data (below). Reference note, not a safety guarantee.

Herb-Drug Interactions

• No dedicated fenugreek-only interaction trials exist, but two mechanistically plausible signals are documented. (1) Hypoglycemic medications — randomized trials adding fenugreek seed extract on top of metformin/sulfonylurea therapy produced significantly greater fasting and postprandial glucose reduction than placebo-plus-drug, so an additive blood-sugar-lowering effect is plausible and glucose monitoring is a reasonable precaution (PMID 38863744; PMID 27733237). (2) Anticoagulants — a published case report describes a rise in INR in a warfarin patient taking a combination boldo-fenugreek product, attributed to fenugreek’s coumarin content, though the product combined two herbs and no fenugreek-alone warfarin study exists (PMID 11310527). (Flagged for practitioner awareness, not a demonstrated fenugreek-alone clinical interaction.)

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 Hu Lu Ba (fenugreek, Trigonella foenum-graecum)?

  Yes — fenugreek seed is one of the more clinically studied food-herbs, with multiple randomized trials and a meta-analysis on blood glucose and lipids. This is modern nutritional/pharmacological research context on the food-herb itself, not a TCM clinical validation of the “warms Kidney yang” action, and is presented here for reference only.

  • Glycemic RCTs (Fenfuro™ extract) — a 12-week randomized, double-blind, placebo-controlled trial in 104 type-2 diabetics (42/39 completers) on standard antidiabetic therapy reported fasting glucose down ~38% and postprandial glucose down ~44% versus placebo, with no significant adverse effects on liver/kidney tests (PMID 38863744). A separate 90-day multicenter, placebo-controlled, add-on-to-metformin trial in 154 subjects reported roughly 22% greater fasting and 30% greater postprandial glucose reduction than placebo, with normal safety labs (PMID 27733237).
  • Meta-analysis (cardiometabolic) — pooling 12 RCTs, fenugreek supplementation was associated with fasting glucose ~13 mg/dL lower, HbA1c ~0.58% lower, and total cholesterol/LDL several mg/dL lower than placebo, though the authors flagged high heterogeneity across trials and called for more placebo-controlled confirmation (PMID 32951700).
  • Allergy cross-reactivity — a published case report describes a peanut-allergic child who developed fenugreek allergy via a ~50-kDa fenugreek protein cross-reactive with peanut’s major allergen Ara h 1 (PMID 39040656).
  • Drug interaction — see drug interactions above for the warfarin/boldo-fenugreek case report (PMID 11310527).

  Human evidence on glucose/lipids is comparatively strong for a food-herb, but it describes fenugreek’s nutritional/pharmacological effects, not the TCM pattern (Kidney-yang deficiency, cold hernia, cold-damp leg qi) this monograph otherwise documents.

  Sources: PMID 38863744, DOI 10.29219/fnr.v68.10667 (T2 diabetes RCT); PMID 27733237, DOI 10.3402/fnr.v60.32382 (multicenter add-on RCT); PMID 32951700, DOI 10.1016/j.ctim.2020.102416 (cardiometabolic meta-analysis); PMID 39040656, DOI 10.1016/j.jacig.2024.100292 (peanut cross-reactivity case report); PMID 11310527 (warfarin/boldo-fenugreek case report). Research context, not a therapeutic claim.

Chinese Herb Notes

• What does Hu Lu Ba combine with, and where does it appear in formulas?

  Hu Lu Ba is typically paired with other Liver/Kidney-channel warming herbs rather than used alone — classically with Xiao Hui Xiang (fennel fruit) and/or Wu Zhu Yu (evodia) for cold hernia and lower-abdominal/testicular pain, and with Bu Gu Zhi for cold-damp leg qi and Kidney-yang deficiency.

  In the Sacred Lotus database it is linked to one classical formula:

  • Hei Xi Dan (“Lead Special Pill”) — a Song-dynasty formula that warms Kidney yang, disperses cold, and descends rebellious qi, combining Hu Lu Ba with other yang-warming herbs (e.g., Fu Zi, Rou Gui, Bu Gu Zhi). Reference note: the formula traditionally also contains a lead mineral (hei xi/litharge) and is rarely used clinically today because of heavy-metal toxicity concerns — noted here for Sacred Lotus/historical context, not as a usage recommendation.

  Source: cross-checked TCM herb and formula references; Sacred Lotus formula link (Hei Xi Dan). Traditional formula context, not treatment advice.