Moderate evidenceGut health

Artichoke Extract

Artichoke leaf extract produces a small but reproducible reduction in total and LDL cholesterol, and has decent trial support for functional dyspepsia. It is not a substitute for a statin, and the popular IBS claim rests on a single old subgroup analysis.

What the science says

Lowers total and LDL cholesterol Moderate evidence
A dose-response meta-analysis of randomised trials found artichoke leaf extract significantly reduced total cholesterol (about -17 mg/dL) and LDL, with effects most evident at higher doses and longer durations. A Cochrane review of hypercholesterolaemia trials reached the same qualitative conclusion while flagging small sample sizes and short follow-up. The magnitude is roughly a tenth of what a moderate-intensity statin delivers.
Relieves functional dyspepsia Moderate evidence
Randomised placebo-controlled trials of artichoke leaf extract (typically 320-640 mg/day for 6-8 weeks) report significant improvement in dyspepsia symptom scores, plausibly via a choleretic (bile-stimulating) effect from cynarin and chlorogenic acid. This is its best-supported gastrointestinal use.
Improves IBS symptoms Limited evidence
The commonly cited evidence is a 2004 post-hoc subset analysis of dyspepsia patients within an open-label study, reporting reduced IBS symptoms and improved quality of life. A subgroup analysis of an uncontrolled study is a hypothesis, not a result — no adequately powered placebo-controlled IBS trial has confirmed it.
Treats fatty liver disease Limited evidence
A network meta-analysis of natural products in non-alcoholic fatty liver disease included artichoke among agents showing signals on liver enzymes and steatosis markers, but the individual trials are small, mostly single-country, and use surrogate imaging or enzyme endpoints rather than histology or clinical outcomes.

Dosage & safety

Studied dose320-1,800 mg/day of standardised artichoke leaf extract, in 2-3 divided doses with meals. Dyspepsia trials most often used 320-640 mg/day for 6-8 weeks; cholesterol trials used higher doses (up to 1,800 mg/day) for 8-12 weeks. Look for standardisation to caffeoylquinic acids (chlorogenic acid) or cynarin content. Whole artichokes are a good food but do not deliver comparable extract doses.

SafetyGenerally well tolerated; the most common effects are flatulence, hunger and mild GI discomfort. Contraindicated in bile duct obstruction, and to be used with caution in gallstones — the choleretic effect can provoke biliary colic. Allergic reactions occur in people sensitised to Asteraceae/Compositae plants (ragweed, chrysanthemum, marigold, daisy). There is a theoretical interaction with anticoagulants and with drugs whose biliary excretion may be altered; monitor if on warfarin. It should not replace prescribed lipid-lowering therapy in anyone with established cardiovascular disease or high absolute risk — no trial has shown artichoke extract reduces cardiovascular events. Safety in pregnancy and breastfeeding has not been established.

Scientific references

Effects of artichoke leaf extract supplementation or artichoke juice consumption on lipid profile: A systematic review and dose-response meta-analysis of randomized controlled trials
Shahinfar H, Bazshahi E, Amini MR, et al. — Phytother Res, 2021
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
Bundy R, Walker AF, Middleton RW, Marakis G, Booth JC — J Altern Complement Med, 2004

Where to buy

NOW Foods, Artichoke Extract, 90 Veg Capsules (450 mg per Capsule)

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