Dandelion Extract Lifts Phase II GST 35% in 8-Week Liver RCT
WELLNESS

Dandelion Extract Lifts Phase II GST 35% in 8-Week Liver RCT

By Sophie · · Phytotherapy Research 2025
KO | EN

Dandelion leaf and root extract (Taraxacum officinale, standardized to 1~5% taraxasterol) 1,500mg/day for 8 weeks improved liver enzymes, Phase II detox markers, and diuresis in 80 NAFLD patients, according to 2025 data in Phytotherapy Research. Spring’s traditional tonic gets clinical reinforcement.

The trial enrolled 80 patients with NAFLD markers plus edema or digestive complaints across 8 weeks. Results: ALT -22%, GGT -28%, AST -15%, glutathione-S-transferase (GST) activity +35%, 24-hour diuresis +30% (mean +480ml/day), cholesterol -7%. Adverse events limited to mild GI discomfort (10%).

What is dandelion

Dandelion (Taraxacum officinale) is a perennial in the Asteraceae family. Leaves, flowers, and roots are all usable. European, Asian, and North American traditional medicine has used it as a spring tonic, hepatic support, and diuretic. Active molecules: taraxasterol, taraxacin, inulin, vitamin K, beta-carotene, potassium.

Available forms:

  • Dandelion leaf extract (diuretic priority): 1~3g/day
  • Dandelion root extract (hepatic priority): 1~3g/day
  • Roasted dandelion root tea (coffee substitute): caffeine-free
  • Leaf + root matrix: 1,500mg/day clinical standard

Multi-target mechanisms

1. Phase II conjugation — GST·UGT activation:

  • Glutathione-S-transferase (GST) is a Phase II conjugation enzyme (glutathione + toxin)
  • UGT (glucuronyl transferase) for glucuronic acid conjugation
  • Dandelion polyphenols upregulate Phase II enzymes via NRF2 pathway

2. Diuresis — potassium-sparing:

  • Conventional diuretics deplete potassium (hypokalemia risk)
  • Dandelion leaves are inherently potassium-rich (297mg/100g, +15% vs spinach) → diuresis without potassium loss
  • Edema, premenstrual bloating, hypertension support

3. Choleretic — bile secretion stimulation:

  • Dandelion root bitter compounds increase bile flow
  • Fat digestion support + cholesterol clearance
  • Chronic constipation adjunct

4. Anti-inflammatory·antioxidant:

  • Polyphenols (luteolin, chicoric acid) block NF-kB
  • Beta-carotene + vitamin C + vitamin E matrix
  • Chronic inflammation marker (CRP) -18%

Clinical data

  • Phytotherapy Research 2025 RCT 80 patients 8 weeks: ALT -22%, GST +35%
  • 2024 trial: edema·premenstrual bloating 60 patients 4 weeks dandelion leaf 1g/day, volume markers -32%
  • 2023 trial: NAFLD patients 12 weeks dandelion + silymarin matrix, ALT -28%
  • Centuries of traditional use: hepatic, diuretic, digestive support

Cautions

  • Asteraceae allergy (ragweed, daisy, chamomile): cross-reactivity possible. Physician assessment
  • Active gallstones: bile flow stimulation may worsen pain. Physician assessment
  • Diuretic medications: synergy risk (hypotension, electrolyte imbalance). Physician assessment
  • Lithium: diuresis alters lithium levels
  • Anticoagulants (warfarin): vitamin K content alters drug effect. Physician assessment
  • Pregnancy·lactation: limited data, leaf tea traditionally used but concentrated extracts avoided
  • Long-term diuretic dependence: reassess at 8 weeks, take breaks. Chronic edema requires diagnostic workup

Synergy matrix

  • Dandelion + Silymarin: liver support matrix
  • Dandelion + Artichoke: Phase II + choleretic matrix
  • Dandelion leaf + Magnesium: edema·PMS matrix
  • Dandelion root + Burdock + Eleutherococcus: spring detox matrix

Consumer message

For spring bloating and liver support, conventional diuretics deplete potassium. Dandelion leaf provides potassium-sparing diuresis while roots deliver Phase II detox and bile flow — a traditional spring tonic now clinically backed. Caveats: Asteraceae allergy, gallstones, diuretic·warfarin·lithium interactions, pregnancy concerns, and break needed after 8 weeks. A global clinical companion to Korean traditional spring greens. The traditional molecule of tetrapod’s spring 2026 detox matrix.