Mentha arvensis - The Cooling Herb for Digestion and Wellness

Mentha arvensis - The Cooling Herb for Digestion and Wellness

Introduction

Mentha arvensis, commonly known as field mint, is a fast-growing perennial herb widely used in traditional medicine across northern Vietnam and neighboring regions. Valued for its aromatic leaves and essential oils, it has long been employed to treat digestive discomfort, headaches, respiratory issues, and mild fevers.

Botanical and cultural background

Mentha arvensis belongs to the Lamiaceae family and is a fast-growing perennial herb that thrives in temperate and subtropical climates. It prefers moist, fertile soils found along riverbanks, irrigation canals, rice paddies, and home gardens, where it often spreads naturally or is cultivated for both medicinal and culinary purposes. The plant grows to a height of 30–90 cm, producing serrated, ovate leaves that release a strong minty aroma when crushed, and small pale purple flowers arranged in whorls along the stems. Flowering typically occurs from May to September, coinciding with peak essential oil production.

In Vietnam, M. arvensis is predominantly cultivated in northern provinces such as Lào Cai, Hà Giang, Tuyên Quang, and Lạng Sơn, often in small plots near households or community gardens. The plant is hardy, easy to propagate from cuttings, and valued for its rapid growth and high oil content. Harvesting is usually performed during the flowering stage (June to August), when the concentration of bioactive compounds like menthol, menthone, and flavonoids reaches its maximum. Both fresh and dried leaves are collected and used throughout the year.

Ethnic minority groups, including the Tày, Dao, and H’mong, have traditionally incorporated M. arvensis into their daily lives. It serves multiple roles: as a culinary herb in soups and teas, a medicinal plant for treating digestive discomfort, headaches, and mild fevers, and as an aromatic herb in steam baths and compresses. In postpartum care, leaves of M. arvensis are often added to herbal baths to stimulate circulation, relax muscles, and refresh the body, highlighting its integration into both therapeutic and cultural practices. Beyond its medicinal applications, the plant also holds symbolic and practical importance, as households often cultivate it near kitchens or courtyards to ensure a ready supply for both health and flavoring needs.

Folk uses and preparation methods

Treatment for cold and respiratory symptoms

Dried leaves of M. arvensis are combined with leaves of Melaleuca, Blumea balsamifera, Elsholtzia ciliata, as well as aromatic herbs such as Ocimum tenuiflorum, coriander seeds, and powdered Aquilaria resin. The mixture is macerated in 80% ethanol for 10–15 days, with occasional shaking to facilitate extraction of volatile and bioactive compounds, then filtered, and the powdered resin is added and filtered again. Half a teaspoon of the extract is dissolved in a cup of boiling water and inhaled as steam.

Treatment for digestive support 

5 g of fresh or whole mint leaves (excluding roots) are steeped in 200 ml of boiling water, and the resulting infusion is consumed every three hours as needed. Alternatively, the previously described ethanol extract of M. arvensis can be used, with 5–10 drops diluted in water per dose, providing a concentrated source of menthol and other volatile compounds that promote digestive function, enhance bile secretion, and exert a mild calming effect on the gastrointestinal tract.

Treatment for common cold and headache

6 g of mint leaves are combined with 6 g of Elsholtzia ciliata, 5 g of Ledebouriella seseloides, 4 g of Angelica dahurica, and 6 g of Allium fistulosum. The mixture is steeped in boiling water for 20 minutes, and the warm infusion is consumed immediately.

Bioactive Compounds and Pharmacological Properties

Mentha arvensis is rich in volatile oils, primarily menthol, menthone, isomenthone, and pulegone, as well as flavonoids, phenolic acids, and tannins. These compounds are largely responsible for its diverse pharmacological activities. Menthol provides a cooling and soothing effect on the gastrointestinal and respiratory systems, while menthone and isomenthone contribute to antispasmodic and analgesic properties.

Flavonoids and phenolic acids in M. arvensis act as antioxidants, scavenging free radicals and protecting tissues from oxidative stress. The plant exhibits antimicrobial activity against bacterial pathogens such as Staphylococcus aureus and Escherichia coli, supporting its traditional use in treating respiratory infections. In addition, the herb has demonstrated anti-inflammatory effects by inhibiting pro-inflammatory cytokines in cellular and animal models.

Mentha arvensis also supports digestive health: its volatile oils can stimulate bile secretion, improve gastrointestinal motility, and reduce nausea. Preliminary studies indicate potential hepatoprotective and mild diuretic effects, aligning with its folk applications for detoxification and liver support. 

Modern science and research

Recent studies on Mentha arvensis have focused on its phytochemical composition, pharmacological activities, and potential applications in medicine and nutraceuticals. Advanced analytical techniques such as GC–MS, HPLC, and LC–MS/MS have identified a high concentration of menthol, menthone, isomenthone, pulegone, and various flavonoids, which are responsible for the herb’s cooling, anti-inflammatory, and antimicrobial effects.

Digestive and hepatoprotective research has demonstrated that M. arvensis extracts can stimulate bile secretion, enhance gastrointestinal motility, and reduce nausea, supporting traditional use for digestive discomfort. Animal studies have also shown mild hepatoprotective effects, with reductions in liver enzyme markers and improvements in overall liver function.

Resources

1. Wikipedia (link)

2. 7 great remedies from Mentha arvensis (Journal of Vietnam Health and Life) (link)

3. Antioxidant, antimicrobial, cytotoxic and analgesic activities of ethanolic extract of Mentha arvensis L. (Nripendra Nath Biswas, Subarna Saha, Mohammed Khadem Ali) (link)

4. Mentha arvensis, a medicinal and aromatic plant, has high nutritional value and several-uses: A review (Muhammad Nazim, Qurat-Ul-Ain Sadiq, Aamir Nawaz, Shazia Anjum, Muqarrab Ali, Haseeba Maryam) (link)