Foods/Drinks to Avoid While on Coumadin

Warfarin (coumadin) is a blood thinner that decreases the chance for a blood clot. Foods high in vitamin K can interfere with the efficacy of warfarin, thus making it more likely that one could clot. Vitamin K is involved in clot formation in the body.

There are also foods that can do just the opposite and increase the effects of Warfarin-making it more likely that an individual could develop a bleed (ex: intestinal). Examples of foods/drinks that may potentially interact:

DECREASE THE EFFICACY OF WARFARIN (Higher risk to clot)

  1. Kale 1/2 cup 531 mcg
  2. Mustard Greens raw  1 cup 279 mcg
  3. Spinach 1/2 cup cooked 444 mcg
  4. Collard Greens 1/2 cup cooked 418 mcg
  5. Parsley 1/4 cup 246 mcg

INCREASE THE EFFECTS OF WARFARIN (Higher risk to bleed)

  1. Garlic oil supplements
  2. Alcohol
  3. Cranberry juice
  4. Vitamin E supplements

REFERENCES:

  1. http://www.mayoclinic.org/diseases-conditions/thrombophlebitis/expert-answers/warfarin/faq-20058443
  2. http://www.heart.org/HEARTORG/Conditions/Arrhythmia/PreventionTreatmentofArrhythmia/A-Patients-Guide-to-Taking-Warfarin_UCM_444996_Article.jsp#.WOf0sRjMzR0
  3. https://www.cc.nih.gov/ccc/patient_education/drug_nutrient/coumadin1.pdf

 

 

Disclaimer: This does not act as any form of medical advice. See your PCP for further education & recommends on foods, supplements, drinks to avoid while on this medication. This blog is for medical professional use only. This is not an all inclusive list.