Vitamin K

BCCT plans to write a summary on vitamin K. While our summary is in development, you can visit these sites:

Before using this therapy, consult your oncology team about interactions with other treatments and therapies. Also make sure this therapy is safe for use with any other medical conditions you may have.


The Lonestar Medical Group summary of Vitamin K lists several safety issues, including a number of herb-drug interactions. Of particular note is that Vitamin K can interfere with anti-coagulation therapy and can interact with drugs that alter coagulation.

For more in-depth information on cautions, adverse effects and interactions, see the TRC Natural Medicines Database summary on Vitamin K (subscription required).

Neil McKinney, ND also cautions not to use N-acetyl-cysteine during use of pro-oxidative therapy such as with vitamin K.1


BCCT does not recommend therapies or doses, but only provides information for patients and providers to consider as part of a complete treatment plan. Patients should discuss therapies with their physicians, as contraindications, interactions and side effects must be evaluated.

Dosage recommendations are available from these sources:

Integrative Programs, Protocols and Medical Systems

For more information about programs and protocols, see our Integrative Programs and Protocols page.

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