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Artichoke

Also indexed as:Cynara scolymus
Artichoke: Main Image© Martin Wall

Related Topics

Botanical names:
Cynara scolymus

How It Works

Artichoke leaves contain a wide number of active constituents, including cynarin, 1,3 dicaffeoylquinic acid, 3-caffeoylquinic acid, and scolymoside.13 The choleretic (bile stimulating) action of the plant has been well documented in a controlled trial involving a small sample of healthy volunteers.14 After the administration of 1.92 grams of standardized artichoke extract directly into the duodenum, liver bile flow increased significantly. This choleretic effect has led to the popular use of artichoke extract in Europe for the treatment of mild indigestion--particularly following a meal high in fat. In an uncontrolled clinical trial with 553 people suffering from non-specific digestive disorders (including indigestion), 320-640 mg of a standardized artichoke extract taken three times per day was found to reduce nausea, abdominal pain, constipation, and flatulence in over 70% of the study participants.15

The standardized extract has also been used to treat high cholesterol and triglycerides. In one preliminary trial16 and one controlled trial,17 use of a standardized artichoke extract was found to lower cholesterol and triglycerides significantly when taken in amounts ranging from 900 to 1,920 mg per day. One preliminary trial failed to find any effect.18

While scientists are not certain how artichoke leaves lower cholesterol, test tube studies have suggested that the action may be due to an inhibition of cholesterol synthesis and/or the increased elimination of cholesterol because of the plant's choleretic action.19 In test tube studies, the flavonoids from the artichoke (e.g., luteolin) have been shown to prevent LDL-cholesterol oxidation--an effect that may reduce risk of atherosclerosis.20

How to Use It

The suggested adult amount of the standardized leaf extract is 300-640 mg three times daily for a minimum of six weeks.21 Alternatively, if a standardized extract is not available, the amount of the crude, dried leaves is 1-4 grams, three times a day.22

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The information presented in Aisle7 is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires June 2015.

 
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