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Dandelion Root

traditional support for liver and kidney function

herb
Evidence · Grade D
Human trial evidenceTraditional useInteraction riskNeeds more research

Bitter root supporting liver, bile flow, and digestion.

Dandelion root (Taraxacum officinale) has a long history of use in traditional medicine systems. It is commonly recognized for its potential diuretic properties and its use in supporting liver and digestive health. While widely consumed as a food and herbal remedy, scientific research specifically on dandelion root in human clinical trials is limited. Many of the traditional applications are based on anecdotal evidence and in vitro or animal studies.

Quick answer

What it is: Dandelion root (Taraxacum officinale) has a long history of use in traditional medicine systems.

May support:Iron Deficiency Anemia, Estrogen Dominance, Kidney Stones, Chronic Constipation, Non-Alcoholic Fatty Liver Disease (NAFLD), Liver Disease, Bloating, Constipation

Evidence:Evidence · Grade D

Evidence Summary

Evidence · Grade D

The current understanding of dandelion root's efficacy is primarily derived from traditional use, in vitro studies, and animal models. There is a notable absence of robust human clinical trials to substantiate many of its purported health benefits. Therefore, claims regarding its effectiveness should be interpreted with caution.

Last reviewed · Jun 2026

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Why It Works

Choleretic and mild diuretic.

How to use

Always consult a qualified clinician.

Editorial guidance

Suggested dosage
2–8 g/day or tincture
Typical forms
Capsule, Tincture, Tea (roasted or dried root), Powder
Quality markers
Look for products that specify the botanical name (Taraxacum officinale) and indicate whether it's organic or wild-harvested. Reputable brands often provide information on sourcing and third-party testing for purity and potency.
Medication interactions
  • Diuretics (may increase diuretic effect)
  • Anticoagulants (potential for increased bleeding risk, though evidence is weak)
  • Antidiabetic drugs (potential to lower blood sugar, monitor closely)
  • Lithium (may increase lithium levels due to diuretic effect)
  • Ciprofloxacin and other quinolone antibiotics (may reduce absorption)
Avoid if
  • Allergy to Asteraceae/Compositae family plants
  • Bile duct obstruction
  • Gallstones (use with caution and medical supervision)
  • Kidney failure (due to diuretic effect)
  • Gastric hyperacidity or ulcers (may stimulate stomach acid)

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Suggested dosage

2–8 g/day or tincture

General guidance — discuss specifics with a clinician.

Active medicinal compounds

Sesquiterpene lactones (e.g., taraxacin), triterpenes, phenolic acids (e.g., caffeic acid, chlorogenic acid), flavonoids, and inulin.

Traditional use

Historically, dandelion root has been used in various traditional medicine systems, including Traditional Chinese Medicine and European folk medicine. It was commonly employed as a 'blood cleanser,' a diuretic, and to support liver and gallbladder function. Infusions and decoctions of the root were often consumed for digestive complaints and to promote urination.

Safety

Safety warnings

Avoid with bile duct obstruction.

Avoid if

  • Allergy to Asteraceae/Compositae family plants
  • Bile duct obstruction
  • Gallstones (use with caution and medical supervision)
  • Kidney failure (due to diuretic effect)
  • Gastric hyperacidity or ulcers (may stimulate stomach acid)

Medication interactions

  • Diuretics (may increase diuretic effect)
  • Anticoagulants (potential for increased bleeding risk, though evidence is weak)
  • Antidiabetic drugs (potential to lower blood sugar, monitor closely)
  • Lithium (may increase lithium levels due to diuretic effect)
  • Ciprofloxacin and other quinolone antibiotics (may reduce absorption)

Reported side effects

  • Allergic reactions (skin rash, itching)
  • Stomach upset
  • Diarrhea
  • Heartburn

General guidance — discuss specifics with a clinician.

Evidence ecosystem

Scientific literature, clinical guidance, government sources, ongoing research, traditional use, and lived experience — grouped by source type and quality.

Overall grade (D)

The current understanding of dandelion root's efficacy is primarily derived from traditional use, in vitro studies, and animal models. There is a notable absence of robust human clinical trials to substantiate many of its purported health benefits. Therefore, claims regarding its effectiveness should be interpreted with caution.

Government Health Sources(1)

Public-health agencies: NCCIH, NIH, CDC, NHS.

High Quality

  • Dandelion

    Memorial Sloan Kettering About Herbs

    Memorial Sloan Kettering's resource on dandelion offers information on its purported uses, scientific evidence for various conditions, and potential interactions or side effects. It provides an overview of the herb's history and current research.

    Government SourceMemorial Sloan Kettering About HerbsHigh Quality

Limitations: A significant limitation is the lack of well-designed, placebo-controlled human clinical trials. Most available research is preclinical, making it difficult to extrapolate findings directly to human health outcomes. Study designs often vary, and standardization of dandelion root preparations is not consistent, further complicating interpretation.

This page is educational. Statements use phrases like "may support" and "has been studied for"because no remedy here is approved to cure, treat, or reverse any condition. Discussion happens on the ailment pages — community statistics here are derived from those reports. Always consult a qualified clinician.

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