Green Anise: Benefits, Dosage, Contraindications

Updated on

Anise, from the Apiaceae family, originates from the Eastern Mediterranean. It is an annual herbaceous plant, 50 to 80 cm tall, with white-yellow flowers in umbels and upright green hollow stems. It is one of the oldest spice plants, with seeds used for culinary and medicinal purposes. The parts of anise used are the seeds, which can be ground into powder or extracted as oil. Anise's active constituents are: sesquiterpenes, phenolic acids, furocoumarins, essential oil (2 to 6%) based on anethole and estragole, sugars, starch, flavonoids, resin, malic acid. Green anise is traditionally recognized for its carminative properties, helping to relieve intestinal flatulence, with antispasmodic and galactagogue effects. It is particularly appreciated by breastfeeding women to stimulate milk production and often appears in teas designed for breastfeeding. It is also used as an expectorant to enhance coughing and treat catarrh, as a diuretic to increase urine output, and as an appetite stimulant.

Other name(s) 

Anise, Cultivated Anise, Egyptian Pimpernel

Scientific name(s)

Pimpinella anisum

Family or group: 

Plants

Active ingredients:

Flavonoids

Sesquiterpenes

Phenolic Acids

Furocoumarins


Indications

Rating methodology

EFSA approval.

Several clinical trials (> 2) randomized controlled with double blind, including a significant number of patients (>100) with consistently positive outcomes for the indication.
Several clinical trials (> 2) randomized controlled with double blind, and including a significant number of patients (>100) with positive outcomes for the indication.
One or more randomized studies or multiple cohorts or epidemiological studies with positive outcomes for the indication.
Clinical studies exist but are uncontrolled, with conclusions that may be positive or contradictory.
Lack of clinical studies to date that can demonstrate the indication.


Digestive Disorders
✪✪✪✪✪

A clinical study conducted on adults with postprandial distress syndrome revealed that administering 3 g of anise powder three times daily for four weeks significantly improved functional dyspepsia symptoms compared to a placebo. Furthermore, the quality of life for patients receiving anise treatment significantly improved compared to those under placebo. According to the European Medicines Agency (EMA), anise is traditionally used to relieve digestive disorders, including abdominal bloating. The recommended dosage is 50 to 200 microliters of anise oil, to be taken three times per day.

Posologie

posologieOral: seed

posologie150 - 600 microliter

duration2 - weeks

populationAdults

formulationoil


Irritable Bowel Syndrome
✪✪✪✪✪

Clinical trials conducted on adults suffering from irritable bowel syndrome (IBS) have revealed the efficacy of anise oil: taking 200 mg three times a day over four weeks alleviated IBS symptoms in 75% of patients, compared to 52.5% under peppermint oil and 35% under placebo. The most notable benefits were observed in the reduction of abdominal pain, bloating and reflux reduction. Moreover, these improvements persisted for two weeks after treatment ended.

Posologie

posologieOral: seed

posologie600 mg

duration4 - weeks

populationAdults

formulationoil


Menopause
✪✪✪✪✪

Preliminary clinical research conducted on menopausal women shows that taking an anise seed extract at a dose of 330 mg three times daily for four weeks reduces the frequency and severity of hot flashes by about 75% compared to placebo.

Posologie

posologieOral: seed

posologie990 - 9000 mg

duration4 - weeks

populationAdults, Women

formulationdry extract


Lactation
✪✪✪✪✪

Green anise helps stimulate milk secretion in breastfeeding women. A small Iranian study tends to validate these properties and concludes on the efficacy of 2 g of green anise in tea form (taken 3 times daily) to increase breast milk.

Posologie

posologieOral: seed

posologie2 g

populationWomen

formulationherbal tea/infusion


Bronchitis
✪✪✪✪

According to the European Medicines Agency (EMA), anise-based preparations are traditionally used as expectorants, aiding the expulsion of bronchial secretions, especially in cases of productive cough associated with bronchitis.

Posologie

posologieOral: seed

posologie150 - 600 microliter

duration2 - weeks

populationAdults

formulationoil


Properties


Digestive Effect

full-leaffull-leaffull-leafempty-leaf

In animals, anise shows significant cytoprotective and anti-ulcerative activities against experimentally induced gastric lesions. The anti-ulcer effect of anise may be induced by prostaglandins and/or its antisecretory and antioxidant properties. Furthermore, some in vivo studies have shown anise has a spasmolytic effect. Finally, anise has long been used as a carminative: it promotes the expulsion of intestinal gas.

Usages associés

Digestive Disorders, Irritable Bowel Syndrome

Respiratory Effect

full-leaffull-leaffull-leafempty-leaf

In vitro studies suggest that anise essential oil, as well as its aqueous and ethanol extracts, may exert bronchodilator effects, attributed to anticholinergic activity.

Usages associés

Bronchitis

Antibacterial

full-leafempty-leafempty-leafempty-leaf

Research has demonstrated that anise essential oils, along with several of its components, possess in vitro antibacterial properties effective against various bacteria such as Escherichia coli, Staphylococcus aureus, Bacillus cereus, Salmonella enterica, and Proteus vulgaris. Trans-anethole, a key element of anise, specifically showed antibacterial effects against Salmonella.


Anti-inflammatory

full-leafempty-leafempty-leafempty-leaf

In animal studies, anise oil revealed anti-inflammatory properties. Anethole, one of its components, seems to play a crucial role by inhibiting the production and activity of inflammatory cytokines. Additionally, it works by reducing the activity of NF-kB (nuclear factor-kappa B, a key protein in immune response and cellular stress mechanisms) activated by tumor necrosis factor (TNF).


Estrogenic Action

full-leafempty-leafempty-leafempty-leaf

Certain constituents of anise oil, including anethole, may have estrogenic effects, as shown by an in vivo study on mice. However, other in vitro research has shown that aqueous extracts of anise have anti-estrogenic effects. This effect concerns the essential oil containing anethole.

Usages associés

Menopause

Galactagogue

full-leafempty-leafempty-leafempty-leaf

Green anise, renowned for its galactagogue properties, plays an essential role in stimulating milk secretion in breastfeeding women. This indication is supported by a long-standing traditional use.

Usages associés

Lactation


Safety dosage

Adult from 18 years: 150 µL - 600 µL (oil)

Anise powder has been used safely at doses up to 9 g per day over a four-week period. As for anise oil, it has been administered orally without risk in doses up to 600 mg per day, also for four weeks. The European Medicines Agency (EMA) recommends a dosage of 150 to 600 µL of anise oil per day, divided into three doses, for adults over 18 years. For herbal tea, an amount of 2 to 3 g is recommended.

Child :

Anise can be given to children in the form of tea, with dosages adapted to their age: 0.5 g for children under one year, up to 2 g for those aged 4 to 10 years.


Interactions

Médicaments

Oral contraceptives: moderate interaction

Preliminary research suggests that anise may have anti-estrogenic effects. Theoretically, concurrent use of large amounts of anise may interfere with contraceptive medications through competition for estrogen receptors.

Estrogens: moderate interaction

Theoretically, concurrent use of large amounts of anise may interfere with hormone replacement therapy by competing for estrogen receptors.

Tamoxifen: moderate interaction

Theoretically, high doses of anise may interfere with tamoxifen due to its potential estrogenic effects.


Precautions

Pregnant women: use with caution

Anise and its oil, when consumed in common dietary amounts, are considered safe. However, there is a lack of reliable data on the safety of using anise at therapeutic doses during pregnancy or breastfeeding.

Breastfeeding woman: use with caution

Anise and its oil, when consumed in common dietary amounts, are considered safe. However, there is a lack of reliable data on the safety of using anise at therapeutic doses during pregnancy or breastfeeding.