It's easy to get answers about health and nutrition! Just send your question by email to [email protected] 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, CCMS | Terms of Use | Privacy Policy

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Coumadin Book

This indispensable book includes:

• A primer on WHAT a Mediterranean-style diet is and WHY it's great for you
• 95+ delicious Coumadin safe recipes
• Information about managing your diet on Coumadin
• Ingredient and cooking tips throughout the book
• Complete Nutrition Facts, including Vitamin K content, for each recipe

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Note: This is a revised and updated version of Dr. Harlan's The Dr. Gourmet Diet for Coumadin Users. These are the same recipes with updated Nutrition Information, with the addition of information on a Mediterranean-style diet.

How Much Vitamin K is in...?

Find out the exact amount of Vitamin K (in micrograms) of almost a thousand common foods! Listed both alphabetically and then in order of the amount of Vitamin K in the food, this list will help you know exactly how much Vitamin K you're eating. Just $4.95 for the eBook (PDF) or $12.95 for the paperback. Get your copy now!


Ask Dr. Gourmet

How much Vitamin K is in radish greens?

I am on Warfarin, my INR range is 3.0-4.0. I would like to know exactly how much Vitamin K is in radish greens. I would appreciate any information you can give me.

Dr. Gourmet Says...

fresh radishes just pulled from the earth

We source our Vitamin K information from the USDA FoodData Central database, the gold standard for nutrition information worldwide. Unfortunately, radish greens do not appear in the database.

However, other greens do, and they tend to be very high in Vitamin K.

For one cup, chopped:
Beet greens: 152mcg
Chicory greens: 86.3mcg
Dandelion greens: 428mcg
Mustard greens: 144mcg
Turnip greens: 138mcg
Collard greens: 157mcg

Radishes themselves, however, have only 1.5mcg per cup (sliced). 

I would recommend to all of my warfarin patients that they avoid consuming greens of this type - including radish greens.

While we don't know for sure that radish greens are also very high in Vitamin K, it would be unwise to take the risk.

Thanks for writing,

Timothy S. Harlan, MD, FACP, CCMS
Dr. Gourmet