Withania coagulans (Withania coagulans): Benefits, Dosage, Safety & Evidence

Frequently asked questions

How does Withania coagulans lower blood sugar?

Withania coagulans contains withanolides and other bioactive compounds that may help regulate blood glucose levels. Research suggests these compounds may enhance insulin sensitivity and support pancreatic beta-cell function. The herb's withanolides appear to influence glucose metabolism pathways, though the exact mechanism requires further study. Evidence level C indicates preliminary research supports these potential effects, but more rigorous clinical trials are needed to fully understand the mechanism of action.

Can I take Withania coagulans with thyroid medication?

Withania coagulans may interact with thyroid medications and is contraindicated for individuals taking these drugs. The herb has been traditionally used for thyroid disorders and may affect thyroid hormone levels. Taking it alongside thyroid medication could potentially alter the effectiveness of your prescription or cause hormonal imbalances. Consult your healthcare provider before combining Withania coagulans with any thyroid medications such as levothyroxine.

What is the recommended dosage of Withania coagulans for diabetes?

The typical adult dosage of Withania coagulans is 3-6 grams of dried fruit powder daily, taken in divided doses. This traditional dosage is based on Ayurvedic and Unani medicine practices. However, standardized extracts may have different dosing recommendations. Evidence level C means optimal therapeutic dosing has not been firmly established through clinical trials. Always consult a qualified healthcare practitioner to determine the appropriate dosage for your individual needs.

Is Withania coagulans safe during pregnancy?

Withania coagulans is considered unsafe during pregnancy and should be avoided. The herb contains tropane alkaloids and other compounds that may stimulate uterine contractions or cause adverse effects on fetal development. Traditional use and available evidence (level C) indicate this herb is contraindicated for pregnant women. Women who are pregnant, trying to conceive, or breastfeeding should not use Withania coagulans without explicit guidance from a healthcare provider.

What are the benefits of Withania coagulans?

Withania coagulans is traditionally used in Ayurvedic and Unani medicine primarily for managing diabetes and supporting liver health. Other traditional uses include treating dyspepsia, addressing thyroid disorders, and acting as a natural milk coagulant for cheese production. The herb contains withanolides, diosgenin, and other bioactive compounds. Evidence level C indicates these uses are supported by preliminary research and traditional knowledge, but more clinical studies are needed to confirm therapeutic benefits.

What are the side effects of Withania coagulans?

Withania coagulans may cause mild gastrointestinal upset in some individuals, including nausea or digestive discomfort. These side effects are generally considered minor and often resolve with continued use or dose adjustment. The herb's safety profile has not been extensively studied in clinical trials (evidence level C). More serious adverse effects are not commonly reported, but long-term safety data is limited. Discontinue use if you experience persistent or severe symptoms and consult a healthcare professional.

PubMed-compiled information sheet

This sheet was compiled from PubMed (NIH) abstracts using AI assistance. Every factual claim is cited to a real PubMed article (see the source list). It has not yet been human-reviewed — confirm with a healthcare provider before use.

Compiled from 30 PubMed articles · model: gemma4:31b

Summary

Withania coagulans is a medicinal plant from the Solanaceae family used in Ayurvedic medicine for its diverse biological activities, including anti-inflammatory and antihyperglycemic effects [PMID:20487193, PMID:34833974].

Background

Withania coagulans is an erect grayish under-shrub belonging to the Solanaceae family, commonly found in Pakistan, East India, Iran, and Afghanistan [PMID:34618296].

Traditional uses

In Ayurvedic medicine, it has been used to treat abnormal cell growth, wasting disorders, neural and physical problems, diabetes mellitus, insomnia, and acute and chronic hepatic ailments [PMID:34833974, PMID:32751610].

Active compounds

The plant contains withanolides (such as withacoagulin A-I, Coagulin-L, and withacogulanoside-B), flavonoids, tannins, and β-sterols [PMID:12770585, PMID:19774603, PMID:23316950, PMID:34833974, PMID:32751610].

Mechanism of action

Withanolides from W. coagulans have demonstrated inhibitory activities on T- and B-cell proliferation [PMID:19774603], inhibition of nitric oxide production in macrophages and TNF-α-induced NF-κB activation [PMID:23316950], and modulation of the PI3K/AKT pathway to alleviate hepatic stellate cell activation [PMID:40345560]. Coagulin-L has also shown potential as a dipeptidyl peptidase-4 (DPP-4) inhibitor in molecular simulations [PMID:33078683].

Clinical evidence

Evidence DHyperuricemia

Combination of W. coagulans and Fagonia cretica crude extracts ameliorated hyperuricemia in mice models [PMID:40712280]

Evidence DDiabetes Mellitus

Aqueous fruit extract (1000mg/kg) significantly reduced fasting blood glucose levels in diabetic rats [PMID:23105813]; methanolic extracts also showed hypoglycemic effects in rabbits [PMID:40510951]

Evidence DLiver Fibrosis

Coagulin-L alleviated hepatic stellate cells activation and angiogenesis in MCD diet-induced liver fibrosis mice models [PMID:40345560]

Evidence DArthritis

Coagulansin-A (10mg/kg i.p.) improved body weight and antioxidant potential in CFA-induced arthritic mice [PMID:38908719]

Evidence DGastric Ulcers

Fruit extract demonstrated gastroprotective effects against acidified ethanol-induced ulcers in rats [PMID:40636368]

Evidence DIschemia/Reperfusion Injury

Safety & adverse effects

Coagulansin-A was found to be safer with fewer adverse effects, showing hepato-protective and nephroprotective properties in mice [PMID:38908719].

Evidence summary

The current evidence is primarily based on in vitro studies and animal models (mice, rats, rabbits, and fish), indicating strong preclinical potential for anti-inflammatory, antidiabetic, and hepatoprotective activities, but lacks human clinical trial data.

PubMed sources

1.PMID: 12770585 (2003) — Withanolides from Withania coagulans. · Phytochemistry
2.PMID: 19774603 (2009) — Immunosuppressive withanolides from Withania coagulans. · Chemistry & biodiversity
3.PMID: 40712280 (2025) — Combination of Withania coagulans and Fagonia cretica ameliorates hyperuricemia by re-modulating gut microbiota-derived spermidine and traumatic acid. · Phytomedicine : international journal of phytotherapy and phytopharmacology
4.PMID: 40345560 (2025) — Coagulin-L alleviates hepatic stellate cells activation and angiogenesis through modulation of the PI3K/AKT pathway during liver fibrosis. · Biochemical pharmacology
5.PMID: 40720462 (2025) — Prevalence of multidrug-resistant biofilm-forming pathogens in diabetic foot ulcers and antimicrobial activity of nanoparticles.

Withania coagulans

Sources & Citations

Calculate a safe dose of Withania coagulans

Physalis peruviana

Teucrium polium

Terminalia catappa

Frequently asked questions

Summary

Background

Traditional uses

Active compounds

Mechanism of action

Clinical evidence

Safety & adverse effects

Evidence summary

PubMed sources

Government sources

Withania coagulans

Sources & Citations

Calculate a safe dose of Withania coagulans

Related Herbs

Physalis peruviana

Teucrium polium

Terminalia catappa

Frequently asked questions

Summary

Background

Traditional uses

Active compounds

Mechanism of action

Clinical evidence

Safety & adverse effects

Evidence summary

PubMed sources

Government sources