MENU
 

It's easy to get answers about health and nutrition! Just send your question by email to askdrgourmet@drgourmet.com and Dr. Harlan will respond to selected questions of general interest. Answers will be posted in the Ask Dr. Gourmet newsletter (sign up now!) and archived in the Ask Dr. Gourmet section of the website.

Please note that the Ask Dr. Gourmet feature is restricted to questions regarding food and nutrition. Due to the many questions we receive, not all questions may be answered. For more specific questions about your individual health, please contact your doctor. About Timothy S. Harlan, MD, FACP | Terms of Use | Privacy Policy


 

Ask Dr. Gourmet



Should Coumadin (warfarin) users peel zucchini?

My husband is on Coumadin (warfarin) and his reading this past week was below the 2.0. He was told not to eat any green leafy vegetables and when I asked about zucchini I was told I would have to peel it. I had never heard or read about that before. His diet for the next 7 days is to be limited to non-green veggies but he could have one serving of green vegetables during that 7 day period.

Where can I find research on this? Especially interested in zucchini because I buy that all year long and cook it along with eggplant, etc.

Dr. Gourmet Says...

Zucchini

I am not sure why your husband’s physician might have suggested peeling the zucchini.

Zucchini and other squash varieties are low in Vitamin K. Eight ounces of zucchini, including the peel, contain only 9.8 micrograms of Vitamin K. This is a medium sized zucchini and should be safe for those on Coumadin (warfarin).

It is a common misconception that all green vegetables are high in Vitamin K. The most challenging vegetables will be the cruciferous variety — cabbages, levy greens and broccoli.

You can track the amount of Vitamin K in any food using the USDA database at this link:

http://ndb.nal.usda.gov/ndb/foods

Thanks for writing,

Timothy S. Harlan, MD, FACP
Dr. Gourmet