Harvard Heart Letter

Ask the doctor: Do people on warfarin need to avoid vitamin supplements that contain vitamin K?

You mentioned Centrum Cardio, a new multivitamin supplement that supposedly lowers cholesterol. Taking two tablets a day would deliver 25 micrograms of vitamin K. Is it wise to recommend this product for someone taking warfarin or other anticoagulants?

To continue reading this article you must be registered.

Get Licensed Content to Harvard Health

If you are interested in licensing content from Harvard Health Publications, please contact us using our online form. Our licensing and business development professionals will help you leverage consumer health content from Harvard Medical School as a clear differentiator in helping achieve your business goals.

Contact Us

Customer Log In