Dandelion root tea: how to make it, and what it actually does

Dandelion root tea is made by steeping or simmering 1-2 teaspoons of dried, cut dandelion root — raw or roasted — in a cup of hot water for 10-15 minutes. It has no caffeine, and its best-documented effect (more frequent urination) comes from a single small trial that tested a liquid leaf extract, not tea brewed from root, so what tea itself does hasn't been directly measured.

How to make it

Use 1-2 teaspoons of dried, cut dandelion root per cup of water. Because root is denser and tougher than a leaf tea, it benefits from a longer steep or a light simmer rather than a quick dunk: bring water to a boil, add the root, then simmer gently for 10-15 minutes (or steep covered for 15-20 minutes if you're not simmering) before straining. The longer contact time pulls more flavor and compounds out of the woody root than a standard 3-5 minute tea steep would.

Raw (unroasted) dandelion root tea is more bitter and grassy — closer to a digestive-bitters flavor. Roasted dandelion root, browned in an oven or dry skillet before steeping, develops a deeper, toasted, coffee-adjacent flavor through the same browning reaction that roasts coffee beans (see dandelion root coffee). Some people find roasted root more palatable on its own; others add a squeeze of lemon, a splash of milk or a bit of honey to either version to cut the bitterness.

What the research actually says it does

Dandelion root's pharmacology — diuretic, choleretic (bile-stimulating), antioxidant and other activity — has been studied mostly in the lab and in animals, according to a 2006 review of its chemistry and pharmacology, which describes human-level testing of most of these effects as unfinished research. The single published human trial gave 17 healthy adults a liquid dandelion leaf extract (not root, not tea) three times over one day, and found urination frequency rose after the first two doses. That trial is the closest thing to direct human evidence for dandelion's most commonly repeated claim — but it tested a different plant part, a different form, and a single day, not a cup of root tea taken regularly. See dandelion root benefits: what the research does and doesn't show for the full picture, including what hasn't been tested at all.

Safety, daily use and side effects

A federal drug-safety monograph lists dandelion as GRAS (generally recognized as safe) as a food, and notes it can rarely cause allergic reactions, diarrhea or general GI upset, without a stated rate — see does dandelion root cause diarrhea, gas or bloating? for what's behind that. No trial has tested daily dandelion root tea over weeks or months; is it safe to take dandelion root every day? covers what is and isn't known there. If you take a prescription medication, see dandelion root and medications: what to check before making tea a daily habit.

Questions people ask

What does dandelion root tea do?

The best-documented finding comes from a single trial of liquid leaf extract, not tea, that found more frequent urination — everything else attributed to dandelion root tea (digestive, liver-related or otherwise) is based on lab and animal research, not a trial of the tea itself. See the research section above.

Where can you buy dandelion root tea?

It's widely available as loose tea-cut root, tea bags, and roasted "coffee" blends through health food stores and online retailers. How to choose a good dandelion root covers what to check on a label before buying.

Does dandelion root tea break a fast?

Plain dandelion root tea, with nothing added, has negligible calories from the water-soluble compounds it releases — comparable to any other plain herbal tea. Whether a negligible-calorie tea counts as "breaking a fast" depends on which fasting protocol you're following and who defined its rules, not on anything specific to dandelion, so check the guidance for your specific approach.

Can dandelion root tea thin the blood?

A 2006 review of dandelion's studied pharmacology lists anti-coagulatory activity among the effects researched, mostly in lab and animal work, not in a human bleeding-risk trial. If you take a blood-thinning medication, that's a reason to check with a doctor or pharmacist before drinking it regularly, rather than assuming it's inert.

Does dandelion root tea cause blood in your stool?

No research links dandelion root tea to that. Blood in your stool is a symptom worth bringing to a doctor regardless of what you've been drinking, rather than assuming it's tea-related.

Does dandelion root tea help a sore throat, move kidney stones, or reduce edema?

None of those specific uses has been tested in a trial of dandelion root tea. They circulate as folk claims tied to dandelion's traditional use, not as documented findings — see dandelion root benefits for what has actually been studied.

If you're pregnant, nursing, or thinking about giving dandelion root tea to a child, ask a doctor first — see who should not take dandelion root.