Burdock: benefits, dosage, contraindications

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Burdock is a biennial plant, widely distributed in the temperate regions of Asia, the Americas and Europe. It belongs to the Asteraceae family, like artichokes. In cooking, its roots taste like artichoke! It grows in uncultivated land up to 1800 m in altitude. It is characterized by its purplish-pink flowers, grouped in hooked flower heads, which is why it often clings to fur and clothing. Its root is fleshy and can measure up to 50 cm. In herbal medicine, it is indeed the roots that are used. They contain up to 45% inulin, water-soluble fibers well known for their beneficial effect on the microbiota. In addition to inulin, its main active components include: phenolic acids, arctigenin, sterols, sesquiterpene lactones (such as arctiopicrin), tannins and lignans. Burdock is also a source of vitamins, minerals and amino acids. Burdock is taken orally to purify the blood. It is notably known as a skin depurative and a diuretic. Traditionally, burdock was used as a laxative, diuretic, in the treatment of urinary stones, and for gastrointestinal disorders. More recently, it has been recommended for skin disorders such as acne, psoriasis or eczema. In naturopathy, burdock is favored to treat any type of dermatosis in metabolic conditions.

Other name(s) 

Herb for ringworm, herb of ringworm, Burdock

Scientific name(s)

Arctium lappa, Arctium minus, Arctium tomentosum

Family or group: 

Plants

Active ingredients:

Phenolic acids

Flavonoids

Tannins

Lignans

Sterols

Terpene lactones


Indications

Scoring methodology

EFSA approval.

Several randomized, double-blind, controlled clinical trials (> 2), including a significant number of patients (>100), with consistently positive conclusions for the indication.
Several randomized, double-blind, controlled clinical trials (> 2), including a significant number of patients (>100), with positive conclusions for the indication.
One or more randomized studies, or several cohorts or epidemiological studies, with positive conclusions for the indication.
Clinical studies exist but are uncontrolled, with conclusions that may be positive or conflicting.
No clinical studies to date that can demonstrate the indication.


Wrinkles
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A very small study conducted in women aged 39 to 65 shows that applying an emulsion containing fruit extract from burdock at 1.2% to the face twice daily for 4 weeks slightly reduces wrinkles of the skin around the eyes compared with a placebo.

Posologie

posologieTopical: fruit

duration4 - weeks

formulationcream


Acne
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Due to its sebo-regulatory and antibacterial properties, burdock is traditionally indicated for superinfected acne in adolescents and adults.

Posologie

posologieOral: root

posologie350 - 1050 mg

duration4 - weeks

populationAdolescents, Adults

formulationpowder, dry extract


Eczema
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Because of its anti-inflammatory and sebo-regulatory properties, burdock is traditionally used in eczema and other seborrheic skin conditions.

Posologie

posologieOral: root

posologie350 - 1050 mg

populationAdolescents, Adults

formulationpowder, dry extract


Dermatoses
✪✪✪✪

Burdock root is used on the skin to regulate sebum secretion. More generally, burdock can be used for dermatoses associated with metabolic conditions, thanks to its properties related to blood glucose (hypoglycemic) and the liver (hepatoprotective).

Posologie

posologieOral use: root

posologie350 - 1050 mg

populationAdolescents, Adults

formulationpowder, dry extract


Urinary disorders
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Burdock root is traditionally used for its effects on kidney function. Due to its diuretic property, it increases urine volume, promoting the elimination of microbes during urinary tract infections.

Posologie

posologieOral use: root

posologie350 - 1050 mg

populationAdolescents, Adults

formulationpowder, dry extract


Detoxification
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Burdock promotes the elimination of the body's wastes through urine, feces, and sweat, notably thanks to its diuretic, choleretic, and laxative properties. Studies support this use. The constituents of the root cause an increase in bile secretion in the liver, and at the renal level, the excretion of uric acid in the urine. Burdock root also reduces the risk of kidney stones.

Posologie

posologieOral use: root

posologie350 - 1050 mg

populationAdolescents, Adults

formulationpowder, dry extract


Gout
✪✪✪✪

The use of burdock may reduce the frequency, intensity and duration of gout symptoms. It has a draining effect. Burdock root promotes the urinary elimination of uric acid crystals responsible for gout. Phytotherapists such as Valnet also recommended the topical application of the fresh plant for rheumatic pain.

Posologie

posologieOral use: root

posologie350 - 1050 mg

populationAdolescents, Adults

formulationpowder, dry extract


Properties


Dermatological effect

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Burdock is cleansing and detoxifying: by stimulating the eliminatory functions of the liver and kidneys, it helps prevent skin disorders. nnTopically, the root is used to regulate sebum secretion and to promote abscess maturation and the elimination of pus.nn

Usages associés

Acne, Eczema

Depurative

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Burdock promotes the elimination of the body's waste through urine, feces, and sweat, notably thanks to its diuretic, choleretic, and mildly laxative properties.nn

Usages associés

Detoxification

Antioxidant

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Various burdock root extracts have shown antioxidant properties in vitro and in vivo.nnThis antioxidant activity is due partly to the ability to trap free radicals and partly to the increase of endogenous antioxidants such as glutathione.nn


Diuretic

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Rich in inulin, potassium nitrate, as well as organic acids, the roots have diuretic properties confirmed in vivo.nn

Usages associés

Urinary disorders, Gout

Anti-inflammatory

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Burdock has anti-inflammatory properties, notably through an anti-PAF (platelet-activating factor) action thanks to the lignans it contains.nnIn vivo, administration of burdock root powder has been shown to reduce intestinal inflammation, this effect being linked to a decreased production of cytokines such as IL-6 and TNF-α.nn

Usages associés

Acne, Eczema, Wrinkles

Antibacterial

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Polyacetylenic derivatives derived only from the fresh root exert some antibacterial activity in vitro (Bacillus subtilis, Escherichia coli, Shigella flexneri and S. sonnei).

Usages associés

Acne

Hepatoprotective

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Burdock protects hepatic cells from damage induced by hepatotoxic substances. This effect is due to sesquiterpene lactones and the antioxidant properties of the plant. Furthermore, the alcohols and acids in the root help stimulate bile production; this choleretic action of Burdock is similar to that of its cousin, the artichoke.

Usages associés

Dermatoses

Hypoglycemic

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Traditionally, burdock root has been used to reduce hyperglycemia. It limits the increase in blood glucose after carbohydrate ingestion. In vivo studies have shown that the intake of inulin could explain this effect.

Usages associés

Dermatoses


Safe dosage

Adult (from 18 years): 1.05 g - 1.75 g (powder)

The use of burdock is not recommended in people under 18 years of age due to insufficient data. The daily dose (according to the EMA) is 350 mg 3 to 5 times per day for the powder form, or an infusion of 2 to 6 g, 3 times per day. In mother tincture: 3 times 50 drops per day.


Interactions

Médicaments

Antiplatelet agents/Anticoagulant: moderate interaction

Theoretically, taking burdock with an anticoagulant may increase the risk of bleeding due to decreased platelet aggregation.

Antidiabetic agents: moderate interaction

Theoretically, taking burdock in combination with antidiabetic medications may have additive effects and increase the risk of hypoglycemia.nnIndividuals on antidiabetic treatment should use burdock with caution.


Precautions

Child up to 18 years: avoid

The few studies conducted in children to date do not provide enough data to exclude any risk associated with the use of this plant.

Renal colic: avoid

People who are having an attack of urinary stones (renal colic) should avoid taking burdock. Indeed, if there is an obstruction of the urinary tract, taking fluids or diuretics will cause an increase in pressure upstream of the obstruction and lead to significant pain.


Contraindications

Pregnant women: contraindicated

Given a possible stimulating effect on uterine contractions, burdock is not recommended for pregnant women.

Breastfeeding women: contraindicated

The few studies conducted in breastfeeding women to date do not provide enough data to exclude any risk associated with the use of this plant.