Vietnamese Coriander (Persicaria odorata): Benefits, Dosage, Safety & Evidence

Questions fréquentes

How does Vietnamese coriander work for digestion?

Vietnamese coriander contains active volatile oils, specifically decanal and dodecanal, which are responsible for its mechanism of action. These compounds exert carminative effects, helping to reduce gas and bloating by relaxing the smooth muscles of the digestive tract. Additionally, the herb contains flavonoids like quercetin and rutin that provide antioxidant support. Evidence Level C suggests these antimicrobial and anti-inflammatory properties contribute to its traditional use in treating various gastrointestinal complaints.

Does Vietnamese coriander interact with medications?

Currently, there are no well-documented severe drug interactions for Vietnamese coriander when consumed in culinary amounts (Evidence Level C). However, because the herb contains biologically active aldehydes and flavonoids, high medicinal doses could theoretically affect liver enzyme function. Patients taking prescription medications should exercise caution with concentrated extracts and consult a healthcare provider to avoid potential interference with drug metabolism.

What is the recommended dosage for Vietnamese coriander tea?

The standard adult dosage for Vietnamese coriander tea is 10 to 15 grams of fresh leaves daily (Traditional evidence). To prepare, steep the fresh leaves in hot water for 5 to 10 minutes. For culinary use as a food medicine, the herb can be consumed freely in dishes such as soups and salads. Users should avoid prolonged consumption of large doses exceeding these recommendations without professional guidance.

Is Vietnamese coriander safe during pregnancy?

Vietnamese coriander is considered safe when consumed in normal culinary amounts as a food seasoning during pregnancy (Traditional evidence). However, medicinal doses, such as concentrated teas or extracts, are contraindicated. The herb has a history of traditional use that suggests potential emmenagogue effects, which could stimulate uterine contractions. Pregnant women should restrict intake to food levels and avoid therapeutic dosages.

What are the side effects of Vietnamese coriander?

Vietnamese coriander is generally well-tolerated when eaten as a food, with few reported side effects (Evidence Level C). Most adverse reactions are mild and may include stomach upset in sensitive individuals. The primary safety concern involves prolonged use of large medicinal doses, which lack sufficient safety data. To minimize risks, users should adhere to culinary quantities and avoid long-term therapeutic use without medical supervision.

Fiche d'information compilée à partir de PubMed

Cette fiche a été compilée à partir de résumés PubMed (NIH) avec l'assistance d'une IA. Chaque affirmation factuelle est citée par un article PubMed réel (voir la liste des sources). Elle n'a pas encore été révisée par un humain — confirmez auprès d'un professionnel de santé avant utilisation.

Compilé à partir de 25 articles PubMed · modèle : gemma4:31b

Résumé

Persicaria odorata, also known as Vietnamese coriander or Vietnamese mint, is an aromatic medicinal plant used as a culinary ingredient and in traditional medicine [PMID:35571080, PMID:16608232].

Contexte

Persicaria odorata (synonym Polygonum odoratum Lour.) is a member of the Polygonaceae family native to southeastern Asia [PMID:16608232, PMID:30795365]. It is also known as Vietnamese mint, Daun Laksa, or Laksa plant [PMID:16608232].

Usages traditionnels

It is used widely in traditional systems of medicine for the treatment of inflammation, stomach ailments, and tumors [PMID:31747377].

Composés actifs

The plant contains polyphenol and flavonoid derivatives, specifically quercetin and catechin [PMID:35571080, PMID:41829056]. Other identified compounds include morin, fisetin, and astragalin [PMID:34378634]. Volatile constituents include (Z)-3-hexenal, (Z)-3-hexenol, decanal, undecanal, dodecanal, 3-sulfanyl-hexanal, and 3-sulfanyl-hexan-1-ol [PMID:16608232].

Mécanisme d'action

In oral squamous cell carcinoma, it inhibits the Akt-mammalian target of rapamycin (mTOR) signaling pathway [PMID:31747377]. In rat ileum, its relaxant effects appear to involve nitric oxide and β-adrenergic pathways, as well as the blockade of calcium influx [PMID:32976072].

Preuves cliniques

Preuve DOral Squamous Cell Carcinoma

Methanolic extract possesses antiproliferative, antisurvival, and antimetastatic activities, inducing cell cycle arrest in the G2 phase [PMID:31747377]

Preuve DDiabetic Cataract and Retinopathy

A combined extract of mango seed and Vietnamese coriander improved cataract and retinopathy in STZ-diabetic rats by improving oxidative stress status and decreasing p38MAPK [PMID:28904737]

Preuve DBacterial Infections

Ethanolic leaf extract and essential oils exhibit antibacterial activity against selected pathogens [PMID:41829056, PMID:32456033]

Sécurité et effets indésirables

Chloroform extract of P. odorata produced a 50% cytotoxic concentration of 100.3 ± 4.2 μg/mL in Vero cells [PMID:29348093].

Synthèse des preuves

The current evidence is primarily based on in vitro studies, animal models (rats, fish, poultry), and systematic reviews of laboratory data; there are no human clinical trials provided.

Sources PubMed

1.PMID: 35571080 (2022) — Anticancer Activities of Polygonum odoratum Lour.: A Systematic Review. · Frontiers in pharmacology
2.PMID: 16608232 (2006) — Comparison of volatile constituents of Persicaria odorata(Lour.) Soják (Polygonum odoratum Lour.) and Persicaria hydropiper L. Spach (Polygonum hydropiper L.). · Journal of agricultural and food chemistry
3.PMID: 41829056 (2026) — Phytochemical Profiling, Antioxidant and Antibacterial Activities of Persicaria odorata Ethanolic Leaf Extract and Evaluation of Growth Performance, Disease Resistance, and Gene Expression in Labeo chrysophekadion (Bleeker, 1849). · Animals : an open access journal from MDPI
4.PMID: 31747377 (2019) — Vietnamese coriander inhibits cell proliferation, survival and migration via suppression of Akt/mTOR pathway in oral squamous cell carcinoma. · Journal of basic and clinical physiology and pharmacology
5.PMID: 32456033

Vietnamese Coriander

Sources et citations

Calculer une dose sûre de Vietnamese Coriander

Ground Elder

Speedwell Herb

Centaury European

Questions fréquentes

Résumé

Contexte

Usages traditionnels

Composés actifs

Mécanisme d'action

Preuves cliniques

Sécurité et effets indésirables

Synthèse des preuves

Sources PubMed

Sources gouvernementales

Vietnamese Coriander

Sources et citations

Calculer une dose sûre de Vietnamese Coriander

Plantes associées

Ground Elder

Speedwell Herb

Centaury European

Questions fréquentes

Résumé

Contexte

Usages traditionnels

Composés actifs

Mécanisme d'action

Preuves cliniques

Sécurité et effets indésirables

Synthèse des preuves

Sources PubMed

Sources gouvernementales