Tulbaghia violacea (Tulbaghia violacea): Benefits, Dosage, Safety & Evidence

Frequently asked questions

How does Tulbaghia violacea work to lower blood pressure?

Tulbaghia violacea contains sulfur compounds, including allicin and tulbaghiins, which are structurally similar to those found in garlic. These compounds appear to promote vasodilation and may inhibit angiotensin-converting enzyme (ACE), helping to relax blood vessels and reduce blood pressure. The flavonoids present also contribute antioxidant and anti-inflammatory effects that support cardiovascular health. Evidence level: C, based primarily on animal studies and traditional use rather than human clinical trials.

Can I take Tulbaghia violacea with blood pressure medication or blood thinners?

Tulbaghia violacea has significant interactions with both antihypertensive medications and anticoagulants. When combined with blood pressure medications, it may cause additive hypotensive effects, potentially leading to dangerously low blood pressure. The sulfur compounds may also increase bleeding risk when taken with warfarin, aspirin, or other blood thinners. Patients on these medications should consult a healthcare provider before using Tulbaghia violacea. Regular monitoring of blood pressure and clotting parameters is recommended if use is necessary.

What is the recommended dosage for Tulbaghia violacea tea and tincture?

Traditional preparations of Tulbaghia violacea typically use 3-5 grams of dried leaves per cup of tea, taken three times daily. As a tincture, the recommended adult dose is 2-4ml three times daily. Fresh leaves can also be consumed as a food ingredient, similar to culinary garlic. Start with lower doses to assess individual tolerance, and do not exceed recommended amounts without professional guidance. Evidence level: C, based on traditional use rather than standardized clinical trials.

Is Tulbaghia violacea safe during pregnancy and breastfeeding?

Tulbaghia violacea is generally considered safe during pregnancy when used in culinary amounts. Traditional use in southern Africa has not identified specific concerns for pregnant or breastfeeding women. However, due to its blood pressure-lowering effects and potential impact on bleeding, pregnant women should use it cautiously and avoid therapeutic doses. Always consult a qualified healthcare provider or medical herbalist before using any herbal medicine during pregnancy, especially if you have existing health conditions.

What is Tulbaghia violacea used for in traditional medicine?

Tulbaghia violacea, known as wild garlic or sweet garlic, has been used extensively in Zulu and Sotho traditional medicine for treating fevers, infections, and hypertension. Traditional healers across southern Africa have employed this plant for its antimicrobial and anti-inflammatory properties. The garlic-scented leaves are used both as a food and medicine. Modern research supports some traditional uses, particularly regarding antimicrobial activity and blood pressure reduction, though evidence remains at level C, requiring further clinical investigation.

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

Tulbaghia violacea is a medicinal bulbous herb indigenous to southern Africa, recognized for its antimicrobial, antioxidant, and antihypertensive properties [PMID:23838476, 27008423].

Background

Tulbaghia violacea, also known as wild garlic, society garlic, or sweet garlic, is a monocotyledonous herbaceous perennial bulb endemic to Southern Africa [PMID:23838476, 23291533]. It belongs to the Alliaceae family [PMID:27008423, 22222281].

Traditional uses

Traditionally, it is used as an infusion or boiled in water to treat fever, colds, influenza, asthma, tuberculosis, and stomach problems [PMID:27008423]. It is used as an antihypertensive, to expel intestinal worms, and externally in medicated baths for paralysis, rheumatism, and fever reduction [PMID:27008423, 22222281].

Active compounds

The plant contains marasmin [S-(methylthiomethyl)-L-cysteine-4-oxide] [PMID:36349240, 11985847], as well as flavonols, anthocyanins, and other phenolic compounds [PMID:35094882]. Phytochemical screening has identified flavonoids, glycosides, tannins, terpenoids, saponins, and steroids [PMID:32186066, 28132403]. Volatile compounds include (Z)-3-Hexenyl acetate, benzyl alcohol, nonanal, and decanal [PMID:36501344].

Mechanism of action

Anti-parasitic activity against Trypanosoma brucei is linked to the irreversible inhibition of the trypanothione reductase enzyme [PMID:29393867]. Antifungal activity against Aspergillus flavus is mediated by the reduction of ergosterol production and the decline of beta-glucan and chitin synthesis [PMID:34100987, 28132403]. Antihypertensive effects are attributed to angiotensin-converting enzyme-inhibitory (ACEI) activity [PMID:25017374].

Clinical evidence

Evidence DHypertension

Methanolic extracts reduced systolic blood pressure in Dahl salt-sensitive rats [PMID:23291533, 25017374] and spontaneously hypertensive Wistar rats [PMID:22222281].

Evidence DDiabetes Mellitus

Rhizome methanolic extract showed antioxidant, antidiabetic, and hypolipidemic effects in streptozotocin-induced diabetic rat models [PMID:26577219, 28852727].

Evidence DCancer

Water-soluble extracts exhibited anti-cancer activity against ovarian tumoral cells and triple-negative breast cancer (TNBC) metastasis in vitro [PMID:35094882, 39451522, 25683299].

Evidence DParasitic Infections

Dichloromethane extracts showed trypanocidal and leishmanicidal activity against Trypanosoma brucei brucei and Leishmania tarentolae [PMID:29393867].

Evidence DFungal Infections

Extracts showed antifungal activity against Candida, Aspergillus flavus, and Aspergillus parasiticus [PMID:34100987, 16835880].

Evidence D

Safety & adverse effects

Dichloromethane extracts showed mild cytotoxic activity against human keratinocytes [PMID:29393867].

Evidence summary

The current evidence consists primarily of in vitro studies and animal models (Level D), demonstrating significant pharmacological potential in antihypertensive, antidiabetic, and antimicrobial activities, but lacks human clinical trials.

PubMed sources

1.PMID: 27008423 (2016) — Tulbaghia--A Southern African Phytomedicine. · Journal of alternative and complementary medicine (New York, N.Y.)
2.PMID: 23838476 (2013) — The genus Tulbaghia (Alliaceae)--a review of its ethnobotany, pharmacology, phytochemistry and conservation needs. · Journal of ethnopharmacology
3.PMID: 29393867 (2018) — Tulbaghia violacea and Allium ursinum Extracts Exhibit Anti-Parasitic and Antimicrobial Activities. · Molecules (Basel, Switzerland)
4.PMID: 35094882 (2022) — Unravelling potential biomedical applications of the edible flower Tulbaghia violacea. · Food chemistry
5.PMID: 36349240 (2022) — Identification of a regiospecific S-oxygenase for the production of marasmin in traditional medicinal plant Tulbaghia violacea. · Plant biotechnology (Tokyo, Japan)

Tulbaghia violacea

Sources & Citations

Calculate a safe dose of Tulbaghia violacea