Artichoke Extract: Benefits, Dosage, and Side Effects

What is artichoke extract?

Artichoke leaf extract is a concentrated preparation made from the leaves of the globe artichoke, usually listed as Cynara scolymus. Capsules, tablets and liquid extracts are sold for digestion, cholesterol and liver health. The artichoke heart you eat comes from the flower bud; eating it does not give you a measured dose of leaf extract.

Supplement labels commonly describe the extract in milligrams and may also give a concentration ratio or a percentage of plant compounds.

Historical use and modern research

Artichoke leaf has been used in European herbal medicine for centuries, particularly for indigestion and complaints attributed to the liver or gallbladder. The European Medicines Agency’s historical assessment^[1] describes its use to encourage bile flow and records preparations ranging from leaf teas and powders to water and alcohol extracts. Alcohol extracts of the leaves were also used in bitter liqueurs associated with digestive use. This tradition helps explain why modern products are marketed for digestion and “liver support.”

European regulators recognize certain leaf preparations for fullness, bloating and gas on the basis of longstanding use. That recognition reflects a documented history of use, rather than firm proof of clinical effectiveness. The indigestion trial below tests a specific modern extract for a similar digestive complaint.

Cholesterol, insulin-resistance and fatty-liver studies ask different questions from the digestive tradition.

Why do people take artichoke extract?

The most direct reason to consider it is indigestion: discomfort or fullness in the upper abdomen, sometimes with bloating. A positive trial involved people with functional dyspepsia, meaning their symptoms had been assessed without finding a structural disease that explained them.

For cholesterol or fatty liver, the research mainly concerns blood tests and scans. Whether the changes translate into fewer heart attacks, less liver damage or better long-term health remains unresolved at the time of writing this article.

When to ask a doctor before taking it

Do not use artichoke leaf medicines or extracts if you have blocked or inflamed bile ducts. The European Medicines Agency monograph^[2] also advises against use with liver disease, gallstones or other disorders of the bile ducts. If you have one of these conditions, ask your treating clinician about suitable options before considering a supplement. Gallstones can interfere with bile drainage.

Avoid it if you are allergic to artichoke or related Asteraceae plants, such as ragweed or daisies. Women who are pregnant or breastfeeding should avoid it because adequate safety information is lacking. It is also not recommended for children under 12.

The monograph lists no reported interactions.

Common dosage and when to take it

As of 2026, there is no recognized recommended daily amount for artichoke extract. The National Academies' nutrient-intake framework does not set one; European guidance instead describes particular traditional herbal preparations. There is also no established nutritional upper limit that you can use as a safe maximum.

Research amounts depend on the preparation and purpose; the study-specific amounts are given below.

Follow the directions for the specific product, including any with-food instruction. The studies reviewed here do not establish a morning-versus-evening advantage. European guidance advises medical review if digestive symptoms persist beyond two weeks while using an artichoke leaf medicine.

How to choose an artichoke preparation

A single-ingredient leaf extract makes the plant part and amount easier to identify. LI 220 and CY450 identify particular study extracts. The label examples below explain composition; they do not establish that a retail product reproduces either study preparation.

Standardized extracts give a marker percentage, sometimes alongside a concentration ratio. These are useful composition details, but the clinical evidence still belongs to the preparation actually tested.

Dried leaf, tea and liquid preparations have their own amounts and directions. Grams of leaf or milliliters of liquid cannot be substituted directly for milligrams of dry extract. Choose a product that identifies what it contains and how much you would take, rather than relying on a vegetable picture or a “detox” claim.

What to look for on the label

Look for the plant part, the extract amount per serving, the number of servings taken each day, and any stated standardization. Together, these explain more than “high strength” on the front.

Extract milligrams and daily servings

For a product listing 450 mg of artichoke leaf extract per capsule^[3], one capsule supplies 450 mg and three supply 1,350 mg. Check whether your own product gives its amount per capsule or per multi-capsule serving before adding it up.

What does “5% caffeoylquinic acids” mean?

That same example specifies at least 5% caffeoylquinic acids, a group of plant compounds used to standardize the extract. For a product with a total extract weight of 450 mg, that minimum percentage means it supplies at least 22.5 mg of the stated compounds. The remaining extract contains other material. Cynarin, which you may also see named on labels, is one of the caffeoylquinic acids.

This standardization helps describe composition, but wording such as “at least 5%” gives a minimum rather than the exact amount in each serving.

What does 4:1 mean?

A second label example^[4] describes a 600 mg, 4:1 leaf extract. Four parts of starting leaf material were used to produce one part of extract.

For a multi-herb product, check whether the artichoke amount is given separately. A combined blend weight cannot tell you how much artichoke extract it contains. Digestion or cholesterol claims may refer to the research below, but the ratio alone does not identify the preparation or daily amount used in a trial.

Common Myths about Artichoke extract

Does artichoke extract detox the liver?

The studies discussed here measured liver enzymes, liver size or fat seen on imaging. They did not establish that artichoke extract removes toxins or that a “cleanse” improves health. A lower enzyme result can be encouraging, but it does not by itself show that liver disease has been treated successfully.

Can it replace a statin?

The favorable cholesterol findings do not establish the same protection against heart attacks or strokes as prescribed treatment. If your aim is to lower cardiovascular risk, discuss the supplement in the context of your cholesterol results and treatment plan rather than replacing a medicine because an extract lowered a blood marker in a trial.

Drawbacks and side effects

An extract taken to improve digestion can still cause digestive symptoms. Their frequency is unknown, and similar overall tolerability to placebo in one trial cannot rule them out. Excessive-dose effects and long-term safety are not well characterized in the studies we looked at.

The science behind artichoke extract

Indigestion and the traditional use

In Holtmann and colleagues' six-week trial^[6], 247 adults were enrolled and 244 were included in the analysis. They received 640 mg of LI 220 three times daily, totaling 1,920 mg/day, or placebo. Symptoms and disease-related quality of life improved more with the extract. An author was affiliated with its manufacturer, Lichtwer.

The 2023 Cochrane review^[7] found a small symptom benefit but rated the artichoke evidence low certainty. Its conclusion rested on this one trial, rather than several independent replications. Traditional use and a positive trial support further investigation; they do not show that every leaf extract will work equally well.

Irritable bowel symptoms

A 2001 postmarketing report^[8] examined people with irritable bowel symptoms within a group already taking artichoke leaf extract for indigestion. Over six weeks, symptom severity improved, and 96% rated the extract at least as helpful as their previous treatments.

That percentage was a patient comparison with past treatment, not a cure rate or a randomized comparison with another medicine. There was no parallel placebo group, so changing symptoms, expectations and other care could account for some of the improvement. The report is a reason to investigate IBS relief separately from upper-abdominal indigestion; it does not establish an effective IBS dose.

Cholesterol

The cholesterol evidence became more favorable as later reviews included more studies, but the preparations and results vary.

In a 2000 trial involving 143 people^[9], Englisch and colleagues used CY450 at 1,800 mg/day for six weeks in people with high starting cholesterol. It reported LDL reductions of about 23% with extract versus 6% with placebo. The authors had commercial affiliations. Those are results for that product and population, not expected reductions for any capsule.

In 2008, Bundy and colleagues^[10] randomized 75 adults with raised cholesterol to leaf extract or placebo for 12 weeks. The extract supplied 1,280 mg/day. Total cholesterol fell by about 4% in the extract group and rose by about 2% with placebo, but LDL cholesterol did not differ significantly between groups. Lichtwer sponsored the study.

The 2013 Cochrane review^[11] considered three trials and found the evidence unconvincing. A 2021 analysis of 14 studies^[12] estimated an average LDL reduction of about 17 mg/dL with artichoke extract. For scale, subtracting 17 mg/dL from a starting LDL of 150 mg/dL would leave 133 mg/dL; that arithmetic is an illustration, not a predicted result for you. These findings leave a plausible cholesterol effect to investigate, without establishing which retail preparation works best or whether taking it prevents cardiovascular events.

Fatty-liver findings

Some liver studies have favorable results, but an improvement on a scan and a change in a blood test can tell different stories.

Panahi and colleagues^[13] randomized 100 adults with ultrasound-diagnosed fatty liver to 600 mg/day of leaf extract or placebo for two months; 90 completed the study. The extract group had lower ALT and AST—enzymes measured in blood to help assess liver injury—and improved ultrasound measurements. No side effects were reported in that experiment. A 2022 review of seven trials^[14] also found lower liver enzymes overall.

The 2026 SteatoChoke pilot^[15] studied 40 adults with obesity and fatty liver before bariatric surgery. After six weeks, imaging suggested less liver fat and a smaller liver, yet liver enzymes, particularly AST, increased with the extract. The abstract does not settle the cause or long-term significance of that rise.

Neither lower enzymes in the earlier studies nor better imaging in the later pilot establishes prevention of serious liver disease. This remains a treatment question for the clinician following the condition.

Metabolic syndrome and genetic differences

Researchers have also asked whether genetic differences affect the response to artichoke extract in metabolic syndrome, a cluster of problems involving blood sugar, blood fats, blood pressure and abdominal weight.

A report involving 50 women^[16] tested 1,800 mg/day of a leaf extract made using water and alcohol against placebo for 12 weeks. Among women carrying a particular FTO gene variant, triglycerides, a type of blood fat, fell by about 19% with extract and rose by about 11% with placebo. Other comparisons within that subgroup were not significant. The report found no evidence that the other gene variant examined, TCF7L2, changed the response.

A related report describing 80 patients^[17], using the same daily amount and duration, reported lower insulin and an insulin-resistance index called HOMA-IR in people carrying two copies of the T version of the TCF7L2 gene. However, the study did not show that different versions of this gene predicted different changes in blood glucose, blood fats or blood pressure.

These reports cannot yet be treated as independent confirmations: whether their participants overlap remains unresolved. Their subgroup findings also differ, and they do not establish that a genetic test can identify who should take artichoke extract or that it prevents diabetes.

Blood pressure

A 2021 review of eight trials^[18] found no clear overall reduction in blood pressure. A favorable result appeared in the subgroup with hypertension, but that narrower finding does not establish artichoke extract as a general blood-pressure treatment.

Cholesterol and liver tests

A cholesterol test measures blood fats; liver tests measure enzymes and other indicators of liver function or injury. Neither tells you that you need artichoke extract.

The bottom line

Artichoke leaf extract has limited evidence for easing functional indigestion and some favorable cholesterol findings. The liver results are mixed, and “detox” claims go beyond what was measured. IBS surveillance and small metabolic-syndrome subgroup reports offer additional leads, with less certain answers for treatment.