Does artichoke extract help with cholesterol, digestion or the liver? What the research shows

The evidence doesn't support artichoke leaf extract as a treatment for high cholesterol, liver disease or a diagnosed digestive disorder. What exists is a mix of small, mostly short trials — some positive on symptom scores or lab markers, several run only in people who already had the condition, and at least one recent trial finding no effect at all. None of it was tested at a single agreed-on dose.

What the evidence doesn't support

It doesn't support artichoke leaf extract as a cholesterol-lowering treatment on its own — the most recent systematic review of the randomized trials called the evidence "not convincing," and a 2025 randomized trial testing artichoke as part of a four-ingredient blend found no significant effect on LDL cholesterol at all. It doesn't support using artichoke extract to reverse or treat non-alcoholic fatty liver disease, cirrhosis or hepatitis — the positive liver trials measured blood markers over a few weeks in people already diagnosed with fatty liver, not a cure or reversal of the disease itself. And it doesn't support a specific dose or duration for any of these uses: the trials below range from 320 mg to 1,920 mg a day, lasting six weeks to four months, and no two used the same preparation.

What the trials found

Cholesterol

The most recent Cochrane-style systematic review (2013) pooled three randomized, placebo-controlled trials of artichoke leaf extract alone, totaling 262 adults with high cholesterol. Two of the three trials reported total cholesterol drops of 4–19% more than placebo over 6–12 weeks; the reviewers rated the trials adequate but flawed, and concluded the evidence for benefit "is not convincing" and that more rigorous trials were needed. A 2025 randomized, placebo-controlled trial in 42 adults with mild-to-moderate high cholesterol tested a blend of plant sterols, bergamot extract, artichoke leaf extract and hydroxytyrosol for four months and found no significant difference in LDL cholesterol, total cholesterol, or any other lipid marker compared with placebo — a null result, and one that can't isolate artichoke's contribution since it was one of four ingredients. Two smaller trials pairing artichoke with bergamot or with red yeast rice and policosanol did report LDL reductions, but both tested artichoke only as part of a combination product, which means neither shows what artichoke does on its own.

Digestion (functional dyspepsia and IBS-type symptoms)

The best-designed trial here is a double-blind, placebo-controlled study of 247 adults with functional dyspepsia, given 1,920 mg of artichoke leaf extract a day (two 320 mg capsules, three times daily) for six weeks. Symptom scores and quality-of-life scores improved significantly more with artichoke than placebo. Two open-label, uncontrolled studies — one in 516 people with self-reported dyspepsia given 320 or 640 mg daily for two months, and a subset analysis of 208 people with concurrent IBS symptoms from a similar postal survey — also reported symptom improvements, but without a placebo group, a comparable improvement from expectation alone can't be ruled out. A separate post-marketing surveillance study reported favorable ratings from both physicians and patients over six weeks, again without a placebo comparison.

Liver enzymes in diagnosed fatty liver disease

A 2021 systematic review and meta-analysis pooled eight clinical trials and found artichoke supplementation significantly reduced AST and ALT (liver enzyme) levels compared with placebo, with the effect concentrated in people already diagnosed with non-alcoholic fatty liver disease and in overweight or obese subjects. One of the trials it drew on, a placebo-controlled study of 90 adults with ultrasound-diagnosed fatty liver given 600 mg of artichoke leaf extract a day for two months, reported reduced ALT and AST, improved liver ultrasound findings, and reduced total cholesterol and triglycerides as secondary outcomes. These are lab-marker and imaging changes in a diseased population over eight weeks, not evidence that artichoke extract prevents or reverses fatty liver disease in a healthy person, and none of these trials tested people with normal liver enzymes to begin with.

Blood sugar and metabolic markers

A 12-week, placebo-controlled trial gave 1,800 mg of artichoke leaf extract a day to 80 adults with metabolic syndrome and measured blood glucose, blood pressure and lipids alongside insulin and insulin resistance (HOMA-IR). There was no significant overall effect on blood glucose, blood pressure or lipid levels between the artichoke and placebo groups; insulin and HOMA-IR improved only in a genetic subgroup carrying a specific gene variant, which the researchers flagged as needing confirmation, not as a general finding.

Questions people ask

Is artichoke extract good for your liver?

The trials that measured liver enzymes recruited people already diagnosed with fatty liver disease and measured blood markers over 8–12 weeks — that's a treatment-style question in a diseased population, not a general "good for your liver" claim that applies to someone with healthy liver function. No trial has tested whether artichoke extract prevents liver problems in people who don't have them.

Does artichoke extract lower cholesterol?

The evidence is mixed and, per the most recent systematic review, not convincing. Two small trials of artichoke alone reported a drop in total cholesterol over 6–12 weeks; a larger, more recent trial testing artichoke as part of a four-ingredient blend found no effect on LDL cholesterol at all. No dose or duration tested here has reliably lowered cholesterol across studies.

Is artichoke extract good for fatty liver?

Several small trials in people already diagnosed with non-alcoholic fatty liver disease reported improved liver enzyme levels after 8–12 weeks of 600 mg a day. That's evidence about a specific, diagnosed condition under medical monitoring — not a basis for using artichoke extract to self-treat suspected liver problems instead of seeing a doctor.

Is artichoke extract good for kidneys?

No clinical trial included in this review measured kidney function as an outcome. There's no research basis, positive or negative, for a kidney-specific claim.

Does artichoke extract help with bloating or gas?

The dyspepsia trials measured overall symptom scores, which can include bloating, but none isolated gas or bloating as a separate outcome, so there's no trial that speaks to that symptom specifically.

Is artichoke extract good for weight loss?

None of the trials above measured body weight as a primary outcome. The metabolic-syndrome trial measured blood glucose and lipids, not weight, and found no overall metabolic benefit outside one genetic subgroup. There's no trial evidence here to support a weight-loss claim.

When to talk to a doctor

High cholesterol, fatty liver disease and persistent digestive symptoms are diagnoses a doctor makes and monitors — not something to self-manage with a supplement instead of medical care. Artichoke extract is not a treatment for any of these conditions. If you have diagnosed liver disease, high cholesterol, diabetes or a digestive disorder, or take medication for any of them, talk to a doctor before adding a supplement, and don't use one as a substitute for the monitoring or treatment a doctor recommends.