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Awaiting clinical review. This entry is sourced but has not yet been signed off by a pharmacist or clinician.

Cynara scolymus (leaf extract)

Artichoke

Artichoke leaf extract lowers total and LDL cholesterol modestly in pooled trials (roughly 10–18 mg/dL), and one good placebo-controlled trial found it eased functional dyspepsia; for irritable bowel syndrome there are only uncontrolled studies. It is generally well tolerated, with mild stomach upset and rare allergy the main problems. The EU regulator lists gallstones, bile-duct obstruction and liver disease as contraindications, so people with those conditions should not take it without medical advice.

Fresh globe artichokes with green leaves
At a glance
Last reviewed 29 September 2026
Evidence
Moderate
Best for
Modestly lowering cholesterol
Typical form & use
Leaf extract, 400–1,320 mg daily
Onset
4+ weeks
Safety
Not for gallstones or bile-duct blockage. No interactions in our data.
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What it's used for

Evidence is rated per use. The same ingredient can be strong for one thing and traditional for another.

UseEvidenceWhat the research shows
Raised cholesterolModerateA 2018 meta-analysis of 9 trials (702 people) found total cholesterol 17.6 mg/dL lower, LDL 14.9 mg/dL lower and triglycerides 9.2 mg/dL lower, with no change in HDL; a 2025 meta-analysis found smaller falls (total −12.3, LDL −10.3 mg/dL). The Cochrane review of the earliest three trials (262 people) called the evidence not convincing, and the EU regulator says more rigorous trials are needed. Effects are modest and the trials were short.1,2,3,8
Functional dyspepsia (fullness, bloating, discomfort)LimitedThe main trial (244 people, 6 weeks, 640 mg extract three times daily) found greater symptom improvement than placebo (8.3 vs 6.7 points, P < 0.01) and better quality-of-life scores. A 2023 Cochrane review found only this one artichoke trial and graded the certainty as low. Uncontrolled surveillance studies point the same way but cannot rule out a placebo effect. We rate it 2 because it rests on one trial.4,5,7,8
Irritable bowel syndromeLimitedThe only data are uncontrolled: in 208 people with dyspepsia who also had IBS symptoms, IBS incidence fell 26.4% over 2 months in an open study. Without a placebo group this cannot show the extract works. We found no placebo-controlled IBS trial.6

How much

Ranges below are what studies used and what supplements commonly contain. They are not a recommendation for you. Start at the low end.

EU monograph, dry water extract of dried leaf
200–640 mg per dose, 400–1,320 mg daily7
For the traditional digestive use; other extract types have different ranges, so check the label.
Dyspepsia trial dose
640 mg three times daily4
One commercial extract (2 × 320 mg, three times a day) for 6 weeks. This is above the monograph's daily range for that extract type, so treat it as what was tested rather than a target.
Duration
Trials of about 6–12 weeks7,3
The EU monograph advises seeing a doctor or qualified practitioner if symptoms last longer than 2 weeks. Long-term safety is not established in the sources we read.
Timing · The monograph gives daily totals in divided doses; the tested dyspepsia dose was taken three times a day. We found no source specifying time of day.With food? · No source we read gave food guidance. Mild stomach upset and heartburn are listed side effects, so it may be worth noting whether it suits you on a full stomach, but that is our suggestion, not sourced.How long to trial · The dyspepsia trial ran 6 weeks and the cholesterol trials in the Cochrane review 6–12 weeks, so trials are the guide to timing. The EU monograph advises seeing a doctor or practitioner if digestive symptoms persist beyond 2 weeks.

How people take it

Capsule or tablet (dry extract)200–640 mg per dose (EU monograph, water extract)The form used in the clinical trials. Extract strengths vary, so doses are not interchangeable between products.
Liquid or soft extract0.7 g three times daily (ethanol soft extract)Listed in the EU monograph for traditional use only; not the form tested in most trials.
Herbal tea (dried leaf)1.5 g in 150 ml, four times daily, or 3 g once or twice dailyTraditional use only; no trials of tea were in the sources we read.

Safety

Who should avoid
  • Gallstones, bile-duct obstruction, cholangitis or other biliary disorders — EU contraindication
  • Liver disease — EU contraindication; ask a doctor first
  • Allergy to artichoke or the daisy family (Asteraceae/Compositae)
  • Pregnancy and breastfeeding — safety not established, use not recommended
  • Children under 12 — not established due to lack of data
Known interactions
No interactions in our data. Absence of a flag is not clearance.

Questions people ask

Does artichoke extract lower cholesterol?

Modestly. Pooled trials show total cholesterol falling by about 12–18 mg/dL and LDL by about 10–15 mg/dL, with no change in HDL. The trials were short and small, and it is not a substitute for prescribed cholesterol treatment.

Is artichoke good for indigestion and bloating?

One good placebo-controlled trial in functional dyspepsia found it worked better than placebo over 6 weeks, and a Cochrane review rated the certainty low. The EU regulator recognises it as a traditional remedy for dyspepsia with fullness, bloating and flatulence.

Can artichoke extract help irritable bowel syndrome?

Possibly, but we do not know. The only IBS data are uncontrolled studies in people who had dyspepsia as well, so the improvement may be partly placebo. There is no placebo-controlled trial we could find.

Who should not take artichoke leaf extract?

The EU regulator lists bile-duct obstruction, gallstones, cholangitis, liver disease and other biliary disorders as contraindications, because the extract increases bile flow. It also advises against use in pregnancy and breastfeeding, and in anyone allergic to the daisy family.

Sources

  1. Meta-analysis Sahebkar A, Pirro M, Banach M, Mikhailidis DP, Atkin SL, Cicero AFG. Lipid-lowering activity of artichoke extracts: A systematic review and meta-analysis. Crit Rev Food Sci Nutr. 2018.
  2. Meta-analysis Jafari A, Karimi MA, Mahmoudinezhad M, Razavi F, Mardani H, Musazadeh V. Artichoke and cardiometabolic health: A systematic and meta-analytic synthesis of current evidence. Diabetes Metab Syndr. 2025.
  3. Cochrane review Wider B, Pittler MH, Thompson-Coon J, Ernst E. Artichoke leaf extract for treating hypercholesterolaemia. Cochrane Database Syst Rev. 2013.
  4. Randomised controlled trial Holtmann G, Adam B, Haag S, Collet W, Grünewald E, Windeck T. Efficacy of artichoke leaf extract in the treatment of patients with functional dyspepsia: a six-week placebo-controlled, double-blind, multicentre trial. Aliment Pharmacol Ther. 2003.
  5. Cochrane review Báez G, Vargas C, Arancibia M, Papuzinski C, Franco JV. Non-Chinese herbal medicines for functional dyspepsia. Cochrane Database Syst Rev. 2023.
  6. Uncontrolled study Bundy R, Walker AF, Middleton RW, Marakis G, Booth JC. Artichoke leaf extract reduces symptoms of irritable bowel syndrome and improves quality of life in otherwise healthy volunteers suffering from concomitant dyspepsia: a subset analysis. J Altern Complement Med. 2004.
  7. Regulator monograph European Medicines Agency HMPC. European Union herbal monograph on Cynara cardunculus L. (syn. Cynara scolymus L.), folium (EMA/HMPC/194014/2017). 2018.
  8. Regulator assessment report European Medicines Agency HMPC. Assessment report on Cynara cardunculus L. (syn. Cynara scolymus L.), folium (EMA/HMPC/194013/2017).

Last reviewed 29 September 2026 · Next review March 2027 · How we rate evidence