Dandelion
In short
Summary of findings for quick reference
Dandelion is well documented in European culinary and herbal traditions. Early Arabic descriptions are mentioned in later herbals, but a precise medieval passage has not been established here. Fuchs’ 1543 herbal clearly illustrates and describes the plant. Later herbals and modern monographs document different preparations and uses. The available sources do not establish an uninterrupted record or the same indication in nine independent traditions.
Traditional use is better documented than clinical efficacy. Much of the research comes from laboratory and animal experiments. A small leaf pilot found short-term changes in individual urinary measures but no significantly higher daily urine volume. No root efficacy trials were available to the 2021 EMA assessment. Dandelion remains a traditionally used bitter herb and seasonal food. Established therapeutic benefit has not been demonstrated.
For medicinal use, the plant part matters: EMA monographs for root and root with herb cover mild digestive complaints, temporary appetite loss and supportive urinary flushing. The leaf monograph covers only flushing. Adequate fluid intake is required; this use is unsuitable when a doctor has advised fluid restriction. The preparations must not be used with an Asteraceae allergy. Liver and biliary diseases, including gallstones, also rule out self-treatment. These precautions apply to medicinal teas as well.
Clinical evidence ↔ Historical significanceWe display two separate evidence categories: clinical evidence from modern trials and historical significance from documented healing tradition. Both are valuable, but they answer different questions.Read more
In every encyclopedia entry we evaluate two distinct categories of evidence. Clinical evidence as used in trials meets a narrower but scientifically essential bar. At the same time, the hundreds of thousands of plant species worldwide have only partially been captured and tested in modern studies.
Alongside the trial picture our researchers compile a comprehensive overview of where and since when a plant has been used across different traditions of natural medicine. When a plant has been used as a medicinal plant in many cultures across many generations, that historical significance deserves to be visible too.
Our position: a truly informative overview emerges only when both categories sit side by side. We communicate transparently what counts as what.
Overview
Dandelion (Taraxacum officinale) is a perennial member of the daisy family (Asteraceae). Each hollow, unbranched flower stalk carries a bright yellow flower head. Its usually deeply toothed leaves resemble lion’s teeth; the English name dandelion derives from the French dent de lion. Leaves and roots have long been used as food and medicinal plant material in Europe. EMA describes traditional uses of root and root with herb for mild digestive complaints, temporary appetite loss and urinary flushing. Its separate leaf monograph covers only urinary flushing.
In Austria, dandelion belongs to traditional spring cooking. Young leaves are eaten as a slightly bitter salad, roasted roots serve as a coffee substitute, and the flowers are made into dandelion syrup, often called Löwenzahnhonig. Its bitter constituents include sesquiterpene lactones; taraxasterol is instead a triterpene. The root contains inulin, and the leaves provide potassium and vitamin K. Clinical evidence is limited. Food use and a long medicinal tradition do not establish therapeutic efficacy.
History
Dandelion has a long European food and medicinal tradition. In her 1931 herbal, Maud Grieve traces earlier reports to Arab physicians of the tenth and eleventh centuries. Without a precise medieval passage, this is not a directly verified first mention. Leonhart Fuchs’ German herbal of 1543 clearly describes and illustrates dandelion as Pfaffenröhrlein in the chapter “Von Wegwart”. Several related plants share that chapter, so not every use mentioned can be assigned specifically to dandelion.
In Austria and other German-speaking regions, dandelion is part of spring cooking and the traditional Frühjahrskur. Young leaves are made into salads, for example with potatoes, and flowers into a honey-like syrup. Roasted-root coffee is also documented; Grieve describes it in detail in 1931. The German Commission E lists dandelion root with herb for uses including appetite loss and dyspeptic complaints. EMA assesses root, root with herb and leaves in separate traditional-use monographs.
Mechanism
Dandelion’s bitter constituents include sesquiterpene lactones such as taraxinic acid derivatives. It also contains triterpenes such as taraxasterol, which belong to a different chemical class. Bitter substances can stimulate digestive reflexes, contributing to the plausibility of traditional use for appetite loss and mild digestive complaints. This does not establish a reliable increase in gastric acid or bile secretion in people taking dandelion preparations.
The root contains inulin, a fermentable fibre in the fructan group. Its content varies with the season and is usually higher in autumn. Gut bacteria can use inulin, but this does not establish a particular benefit from a cup of dandelion tea. The leaves contain potassium and vitamin K. Their traditional medicinal use concerns increasing urine output for urinary flushing. Roasting changes the root’s composition and develops roasted flavours. Root coffee is therefore not equivalent to an unroasted medicinal preparation.
Clinical evidence for dandelion is limited. Much research examines extracts in laboratory or animal models. In a small, uncontrolled 2009 pilot study by Clare and colleagues, 17 people took a hydroethanolic fresh-leaf extract over one day. After individual doses, urinary frequency or the ratio of urine output to fluid intake increased. Total daily urine volume did not increase significantly. Self-recording, lack of blinding and the short duration limit the findings.
EMA’s 2021 root assessment found no clinical efficacy studies. A small controlled study published in 2026 subsequently examined a commercial preparation containing root powder and root extract. Data from 14 healthy, physically active young adults were analysed. At separate visits, all participants received water with and without the preparation. Over four hours, urine output was not statistically significantly higher with the preparation than with water alone. This finding applies to the preparation and conditions studied. The monographs rest on long-standing use and sufficient plausibility. The leaf pilot cannot be transferred to root tea, salad or flower syrup and does not establish treatment of urinary disease. Antioxidant findings in cell cultures and chemical tests likewise do not demonstrate health benefits from normal consumption.
Evidence
| Outcome | Class | Grade | Effect | Studies | Refs |
|---|---|---|---|---|---|
| Mild dyspeptic complaintsEMA lists mild digestive complaints as a traditional use of root and root with herb. Its 2021 root assessment found no clinical efficacy trials. Long-standing use and pharmacological plausibility do not replace clinical evidence.Adults with mild digestive discomfort | TraditionalTraditional use. Long-standing folk practice or EMA HMPC traditional-use monograph. | DEvidence quality grade D. Preliminary signal. A single small trial, pilot result, or laboratory or animal model. Clinical relevance unclear. This is an evidence rating, not a product endorsement. | Traditional Use | [3][5][4] | |
| Temporary loss of appetiteTemporary appetite loss is an EMA traditional-use indication for root and root with herb. Bitter constituents make the use plausible but do not establish clinically demonstrated appetite stimulation by these preparations.Adults with temporary loss of appetite | TraditionalTraditional use. Long-standing folk practice or EMA HMPC traditional-use monograph. | DEvidence quality grade D. Preliminary signal. A single small trial, pilot result, or laboratory or animal model. Clinical relevance unclear. This is an evidence rating, not a product endorsement. | Traditional Use | [3][5] | |
| Urinary flushing in minor urinary complaintsEMA describes leaves traditionally for increasing urine output to aid urinary flushing. An uncontrolled one-day study in 17 people using fresh-leaf extract found changes in individual urinary measures but no significant increase in daily urine volume. It does not establish benefit in urinary disease.Adults using leaf preparations | TraditionalTraditional use. Long-standing folk practice or EMA HMPC traditional-use monograph. | DEvidence quality grade D. Preliminary signal. A single small trial, pilot result, or laboratory or animal model. Clinical relevance unclear. This is an evidence rating, not a product endorsement. | Traditional Use | [6][1] | |
| Antioxidant activityIn 2015 García-Carrasco and colleagues examined leaf and root extracts in chemical assays and cell culture. They found antioxidant activity that varied by extract and test. This does not establish health benefits from salad or tea in humans.In-vitro and preclinical work | TraditionalTraditional use. Long-standing folk practice or EMA HMPC traditional-use monograph. | DEvidence quality grade D. Preliminary signal. A single small trial, pilot result, or laboratory or animal model. Clinical relevance unclear. This is an evidence rating, not a product endorsement. | Preclinical Signal | [2] |
Usage
Forms and preparation
For a spring salad, pick young, confidently identified dandelion leaves from an uncontaminated meadow. Wash and dry them, then dress with oil, vinegar and salt. Potatoes, hard-boiled egg or a little warm bacon go well with them. Older leaves are usually more bitter and tougher. For medicinal leaf tea, weigh the amount specified on the package and prepare an infusion. A teaspoon is not a reliable weight measure, and leaf tea is not equivalent to root tea. For root coffee, dig up confidently identified dandelion roots in autumn. Wash, chop and dry them, then roast at about 150 degrees Celsius until brown and aromatic, stirring occasionally without charring. Grind and brew like coffee. For dandelion syrup, simmer the yellow ray florets in water, strain and thicken the liquid with sugar and lemon. Use a recipe with specified ingredient ratios. Medicinal tea from unroasted root is prepared as a decoction; see the Dosage section and the package for amounts.
Dosage
Young leaves are eaten as salad in normal food portions. Medicinal teas use different amounts: EMA specifies 1 to 5 g of unroasted, comminuted root in 150 ml water as a decoction, two or three times daily. For appetite loss, take it half an hour before a meal. Root with herb uses 3 to 4 g as a decoction or 4 to 10 g as an infusion, up to three times daily. The separate leaf monograph specifies 4 to 10 g as an infusion three times daily. These doses apply from age twelve; follow the particular package instructions and contraindications. Pure root coffee is caffeine-free; dandelion syrup is a sugary food. Neither has an established medicinal dose. For tinctures, juices and extracts, follow the particular package directions because composition and concentration vary. Seek medical advice if symptoms persist beyond two weeks or worsen. Fever, painful urination, cramps or blood in the urine require prompt assessment.
Safety
Look-alikes
Similar plants and look-alikes
Cat’s ear (Hypochaeris radicata)
Cat’s ear (Hypochaeris radicata) also has yellow flower heads and a leaf rosette. Its leaves are usually conspicuously hairy and the wiry flower stalks generally branched. It also contains white latex, so latex alone does not distinguish it from dandelion. Its leaves and roots are also used as food; gather only confidently identified plants.
Chicory (Cichorium intybus)
Chicory (Cichorium intybus) also belongs to the daisy family. It first forms a leaf rosette that can resemble dandelion’s. Later it develops an upright, branched, leafy stem with usually pale blue flower heads. Dandelion instead has unbranched, leafless stalks with yellow heads. Chicory roots are also roasted for coffee substitutes; the bitterness depends on preparation.
FAQs
How do I use young dandelion leaves in a salad?
Pick young, confidently identified dandelion leaves from an uncontaminated meadow, preferably before flowering. Older leaves are usually more bitter and tougher. Wash, dry and dress them with oil, vinegar and salt. In Austria, dandelion salad is served, for example, with warm potatoes, pumpkin seed oil or chopped egg. A little warm bacon also suits the bitter leaves.
How is Löwenzahnhonig made?
So-called dandelion honey is a vegan flower syrup. Separate the yellow ray florets from the green bracts, simmer them in water and strain. Then cook the liquid with sugar and lemon to the desired consistency. Exact amounts of flowers, water and sugar depend on the recipe. Without fixed ratios, yield and storage life cannot be specified. Use a tested recipe and follow its filling and storage instructions.
I have a chamomile or ragweed allergy. Can I still use dandelion?
EMA contraindicates medicinal dandelion preparations in people with a known Asteraceae allergy. Do not test yourself by trying a leaf. With a known chamomile or ragweed allergy, discuss whether dandelion as food is suitable for you with a clinician. The latex can cause skin contact reactions in sensitive people. Stop use if symptoms occur after handling or eating it; breathing difficulty or swelling in the mouth or throat requires immediate medical help.
How is roasted dandelion root coffee made?
Dig up confidently identified dandelion roots in autumn, when they usually contain more inulin than in spring. Wash, chop into roughly one-centimetre pieces and dry them. Roast at about 150 degrees Celsius until brown and aromatic, stirring occasionally without charring. Grind and brew like coffee. Pure dandelion root coffee contains no caffeine. The preparation is historically documented, for example in Grieve’s 1931 herbal.
8 sources.
- Bevin A. Clare; Richard S. Conroy; Kevin Spelman. The diuretic effect in human subjects of an extract of Taraxacum officinale folium over a single day. 2009. doi:10.1089/acm.2008.0152
- Belén García-Carrasco; Raquel Fernandez-Dacosta; Alberto Dávalos; José M. Ordovás; Arantxa Rodriguez-Casado. In vitro Hypolipidemic and Antioxidant Effects of Leaf and Root Extracts of Taraxacum Officinale. 2015. doi:10.3390/medsci3020038
- European Medicines Agency, Committee on Herbal Medicinal Products (HMPC). European Union herbal monograph on Taraxacum officinale F.H. Wigg., radix. 2021. Source
- European Medicines Agency, Committee on Herbal Medicinal Products (HMPC). Assessment report on Taraxacum officinale F.H. Wigg., radix. 2021. Source
- European Medicines Agency, Committee on Herbal Medicinal Products (HMPC). Community herbal monograph on Taraxacum officinale Weber ex Wigg., radix cum herba. 2009. Source
- European Medicines Agency, Committee on Herbal Medicinal Products (HMPC). Community herbal monograph on Taraxacum officinale Weber ex Wigg., folium. 2009. Source
- National Center for Complementary and Integrative Health (NCCIH). Dandelion: Usefulness and Safety. Source
- die umweltberatung (Austria). Steirischer Röhrlsalat. 2023. Source
Legal notice: The depiction of historical significance and traditional use is context within our encyclopedia and not a health claim for any product, not a treatment promise, and not a substitute for medical advice. What may be stated on product labels, product pages, or in advertising is governed by the applicable legal requirements.