Dandelion (Taraxacum officinale)

Dandelion (Taraxacum officinale) contains bioactive flavonoids and phenolic compounds that demonstrate antioxidant activity through ABTS and DPPH radical scavenging mechanisms in laboratory studies. The plant's traditional use for digestive support stems from its bitter compounds and potential anti-inflammatory properties, though clinical evidence remains limited.

Origin & History

Dandelion (Taraxacum officinale) is a perennial herb from the Asteraceae family, native to Eurasia but now found worldwide. The whole plant, particularly leaves and roots, are harvested, washed, dried, and processed using traditional methods like decoction or modern techniques such as ultrasonic-assisted extraction yielding up to 2.62% flavonoids.

Historical & Cultural Context

Dandelion has been used in global traditional medicine systems for centuries, with traditional extraction methods including maceration and decoction noted for their simplicity in resource-limited settings. Specific traditional uses and durations are not detailed in available research.

Health Benefits

• Antioxidant activity demonstrated through in vitro ABTS and DPPH scavenging assays (preliminary evidence only)
• Potential anti-inflammatory effects based on flavonoid content up to 54.7% in purified extracts (no clinical evidence)
• Traditional use suggests digestive support (no clinical trials available)
• May support liver health based on traditional medicine systems (clinical evidence lacking)
• Contains bioactive compounds including terpenoids and polyphenols (clinical significance unestablished)

How It Works

Dandelion's bioactive compounds, including flavonoids comprising up to 54.7% of purified extracts, exert antioxidant effects by neutralizing free radicals through ABTS and DPPH scavenging pathways. The phenolic compounds may modulate inflammatory cascades, though specific receptor interactions require further investigation. Bitter compounds in dandelion may stimulate digestive enzyme secretion and bile production through cholinergic pathways.

Scientific Research

No human clinical trials, randomized controlled trials, or meta-analyses were identified in the research dossier. Current evidence is limited to in vitro antioxidant assays and phytochemical analyses of extraction methods.

Clinical Summary

Current evidence for dandelion is limited to in vitro studies demonstrating antioxidant activity through ABTS and DPPH assays. No controlled clinical trials have been conducted to validate traditional uses for digestive support or anti-inflammatory effects. The anti-inflammatory potential is based solely on flavonoid content analysis rather than human studies. Well-designed randomized controlled trials are needed to establish therapeutic efficacy and optimal dosing protocols.

Nutritional Profile

Dandelion leaves provide approximately 45 kcal per 100g fresh weight. Macronutrients include carbohydrates ~9.2g/100g, protein ~2.7g/100g, fat ~0.7g/100g, and dietary fiber ~3.5g/100g. Micronutrient profile is notably rich: Vitamin A (as beta-carotene) ~10,161 IU/100g, Vitamin K1 ~778.4 mcg/100g (one of the highest plant sources), Vitamin C ~35mg/100g, Vitamin E ~3.44mg/100g, folate ~27mcg/100g, calcium ~187mg/100g, iron ~3.1mg/100g, potassium ~397mg/100g, magnesium ~36mg/100g, and phosphorus ~66mg/100g. Bioactive compounds include sesquiterpene lactones (taraxacin and taraxacerin, primary bitter constituents), flavonoids including luteolin and luteolin-7-glucoside (~1.5–4mg/g dry weight in leaves), apigenin, and quercetin glycosides contributing to the reported 54.7% flavonoid fraction in purified extracts. Phenolic acids include chicoric acid (~1.7–3.6mg/g dry weight), chlorogenic acid, and caffeic acid. Root material contains inulin (fructooligosaccharide) at 12–15% dry weight in autumn-harvested roots, supporting prebiotic classification. Taraxasterol and beta-sitosterol are present in root extracts at trace quantified levels (~0.2–0.5mg/g dry root). Carotenoids in leaves include lutein (~13.6mg/100g) and zeaxanthin. Bioavailability note: Vitamin K1 absorption is fat-dependent and estimated at 5–65% depending on dietary fat co-ingestion; iron is non-heme form with lower bioavailability (~5–12%), enhanced by co-present Vitamin C; inulin from roots reaches the colon largely intact, functioning as a prebiotic substrate.

Preparation & Dosage

No clinically studied dosage ranges are available as human trials are absent. In vitro studies used concentrations up to 200 μg/mL of hydroalcoholic extract. Consult a healthcare provider before starting any new supplement.

Synergy & Pairings

Milk thistle, artichoke leaf, turmeric, ginger, peppermint

Safety & Interactions

Dandelion is generally recognized as safe when consumed as food, but may cause allergic reactions in individuals sensitive to Asteraceae family plants. It may enhance lithium retention and potentiate diuretic medications due to its traditional diuretic properties. Dandelion may interact with anticoagulant medications and should be avoided before surgery. Safety during pregnancy and lactation has not been established through clinical studies.