Blessed Thistle

Blessed Thistle

Supplement Forms/Alternate Names:

Cnicus benedictus

Introduction

Blessed thistle is a plant that grows in North America. It can be taken as a pill or powder. Its leaves can also be made into a tea.

Dosages

There aren’t any advised doses for blessed thistle.

What Research Shows

There is not enough data to support that blessed thistle is helpful in treating health problems. We will review future studies as they are published.

Editorial process and description of evidence categories can be found at EBSCO NAT Editorial Process.

Safety Notes

It is likely safe for most people to take blessed thistle for a short time. People with certain plant allergies may have an allergic reaction to blessed thistle. Not enough studies have been done to say whether it is safe to take for a long period.

Interactions

Talk to your doctor about any supplements or therapy you would like to use. Some can interfere with treatment or make conditions worse, such as:

  • People with plant allergies should talk to their doctor before taking blessed thistle. It may cause a reaction.

References

1. Bruno M, Rosselli S, Maggio A, et al. Antibacterial evaluation of cnicin and some natural and semisynthetic analogues. Planta Med. 2003;69:277–81.

2. Barrero AF, Oltra JE, Alvarez M, et al. New sources and antifungal activity of sesquiterpene lactones. Fitoterapia. 2000;71:60–4.

Last reviewed May 2019 by EBSCO NAT Review Board Eric Hurwitz, DC
Last Updated: 2/14/2020

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This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.

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