The weed with a long résumé

In French, the dandelion has a cheeky nickname. It's pissenlit, which means roughly "pee in bed."[1] The name points to the plant's oldest reputation. The English name is kinder. It comes from the French dent de lion, or "lion's tooth," for the jagged leaves.[2]

The plant you dig out of the lawn each spring has had many jobs. Its young leaves go into salads. Its roasted roots make a coffee-like drink with no caffeine.[1] Herbal traditions on three continents have used it too.

Dandelion is native to Europe and now grows across much of the Northern Hemisphere.[3] This guide covers what the leaf and root contain and how three traditions used them. It also explains what research has tested and how the plant shows up in supplements.

Leaf and root: two different ingredients

Dandelion belongs to the daisy family. Ragweed, chrysanthemums and marigolds are relatives.[3][4] Nearly every part of the plant is edible. Still, the leaf and root bring different things to the table.

The leaf is a slightly bitter green. It has vitamins A, C and K, plus calcium, potassium and fiber.[1][2] Potassium stands out. An EU review describes the leaves as high in it.[5] That matters if you take certain drugs, as you'll see below.

If you want to eat the greens, pick them young. NATIFS, a Minneapolis-based Indigenous food group, suggests tender young greens for salads and soups. It notes that the slightly bitter stems taste good blanched.[6]

The root works more like a pantry. It stores inulin, a fiber that feeds helpful bacteria in your gut.[1] Scientists call fibers like this prebiotics. The term means certain gut microbes feed on them in a way that helps your health.[7] Our guide to fermentable fiber and prebiotics explains how it works. Fibers that gut bacteria ferment can make extra gas when you add a lot at once. Our guide to adding fiber gradually shows an easier pace.

Inulin levels swing with the seasons. The EU review reports about 2% inulin in the root in spring and up to 40% in fall.[5] In China, growers usually dig the root in the fall.[8]

Both parts taste bitter, mostly from compounds called sesquiterpene lactones.[5] The root is also the richest source of taraxasterol, a plant compound that scientists study in the lab. The flowers carry the most flavonoids of any part.[8]

Three traditions, one plant

In Europe, people have eaten dandelion and used it as an herb since the Middle Ages.[9] It has been part of German folk medicine since at least the 1500s. Today, EU health officials list the root with its leafy top as a traditional herbal medicine.[5] The leaf has its own EU monograph too.[10] The traditional listing rests on at least 30 years of documented use, with 15 of them inside the EU. The uses in the EU review focus on everyday digestion, appetite and urine flow.[5]

In China, dandelion is called pugongying. Chinese medical texts recorded it as early as the fifth century. The official herbal of the Tang dynasty, written in AD 657 to 659, described it in detail. Chinese practice uses the whole plant. The main species there is a close Asian cousin, Taraxacum mongolicum. The common dandelion is used too. Chinese medicine groups it with herbs that clear heat. It is listed in the 2020 edition of China's official book of medicines. Cooks in East Asia have long made dandelion pickles, porridge and soup.[8]

In North America, the flowers, leaves and root have a place in Mexican and other folk medicine. That's according to NCCIH, a federal health research center.[3] Native American traditions use the plant as well.[1][2] Native languages gave it their own names. In Ojibwe it is doodooshaaboojiibik, "milky root." In Dakota it is waȟcha zi, "yellow flower."[6]

NATIFS describes eating the whole plant. Young leaves go into salads, soups and tea. Flowers go into fritters, breads and tea. Roots are roasted and ground for tea or added to soups and stews.[6]

What modern research looks at

Scientists study dandelion in lab dishes, in animals and in people. Lab and animal studies help them decide what to test in people next.

One review covers many research topics. They include urine output, bile flow, antioxidants and how gut bacteria use the fiber.[4] Lab studies have also tested how its extracts act on antioxidant and inflammatory signals in cells.[3]

Liver research takes place mostly in rodents and cells. A 2025 review focused on taraxasterol and on how the plant's compounds affect stress pathways in liver cells.[11]

The EU review explains that bitter substances are thought to encourage digestive juices. It also describes older animal studies that measured bile flow.[5] Those ideas help explain the old digestive uses.

On safety, a 2026 review looked at 55 kinds of dandelion. It found that recent safety studies look good for the common dandelion and two close relatives.[9]

A human study on urine output

The best-known human study of dandelion came out in 2009.[12] Researchers asked 17 volunteers to take a fresh leaf extract three times over one day. Each dose was 8 milliliters, a bit more than a teaspoon and a half. The volunteers wrote down how much they drank and how much urine they passed. Then the team compared those numbers with each person's own records from the two days before.

The team looked at two things after each dose. One was how often people urinated. The other was how much urine they passed compared with how much they drank.[12] The study tested the leaf. The root, with its inulin and bitter compounds, is a different ingredient.

Urine output depends on your kidneys, which balance water and minerals around the clock. Our guide to how your kidneys work covers the basics.

How dandelion shows up in supplements and teas

You can find dandelion in several forms.

• Roasted root makes a dark, slightly bitter drink with no caffeine. Many people sip it like coffee.[1]
• Teas use the root, the leaf or both. In Europe, people also use dandelion juice and extracts.[5]
• Capsules hold dried root or leaf powder, or a concentrated extract.
• Liquid extracts are made with water and alcohol, like the one in the 2009 study.[12]
• Food makers use it as a flavoring. FDA lists dandelion and dandelion root extracts as generally recognized as safe for their intended use in food.[13]

A label can show you three helpful details. One is the Latin name, Taraxacum officinale. Our guide to the Latin name on a label explains what it tells you. Another is the part used, since root and leaf bring different compounds. A third is whether the product holds a whole herb powder or an extract. Our guide to extracts and whole herb powders walks through the difference. If the label shows a ratio such as 4:1, our guide to extract ratios explains what the numbers mean.

Dandelion through the day

Because dandelion is both a food and an herb, it can show up at several points in a day. Picture a mug of roasted root on a cool morning, a few young leaves tossed into a lunch salad, or a cup of leaf tea after dinner.[1][6] The root and the leaf bring different compounds, as the table above shows.

In supplements, dandelion can be a single herb or one ingredient among several. It can turn up in a morning formula or in an evening formula next to other traditional herbs, such as milk thistle. Our guide to morning and evening routines can help you pick a time you'll keep.

A multi-ingredient label takes a little more reading than a single herb:

• Some labels name the plant part, root or leaf. Others list dandelion extract.
• Dandelion may sit inside a blend with one total weight. Our guide to reading a supplement label explains how that kind of label is laid out.
• Read the whole ingredient list. Other ingredients may bring caffeine or cautions of their own, as the list below shows.
• Check the directions for timing, water and how many days a routine is meant to last.

Whatever form you choose, it sits beside meals with fiber and protein, enough water, regular movement and steady sleep. Our guide on how to read a detox supplement label walks through the rest.

Frequently asked questions

Is the dandelion in supplements the same plant that grows in my yard?

Yes. A label that lists Taraxacum officinale means the common dandelion. Chinese tradition also uses a few close relatives.[8] If you pick your own greens, choose plants from ground you know hasn't been sprayed, and wash them well.

Does dandelion root coffee have caffeine?

No. Roasted dandelion root makes a drink with no caffeine.[1] If you buy a dandelion blend, check the label for green tea or guarana, which do supply caffeine.

Is dandelion a diuretic?

That is its oldest reputation, as the French nickname shows. EU health officials include urine flow among dandelion's traditional uses.[5] A 2009 study in 17 volunteers measured urine output over a single day after a leaf extract.[12] Whatever you take, keep drinking enough fluid. Our guide to how much fluid you need has the numbers.

Should I take dandelion in the morning or at night?

Either can work. A roasted root cup suits breakfast, and a leaf tea suits a quiet evening. For a capsule, follow the timing on your label and tie it to a moment you already keep, like breakfast or brushing your teeth at night.

Can I just eat dandelion greens instead?

Greens make a fine addition to your plate, with vitamins, potassium and fiber.[1][2] A supplement gives you a measured daily amount in a capsule. Many people enjoy both.