It's easy to get answers about health and nutrition! Just send your question by email to 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


Get the Coumadin Diet Plan and Cookbook!

Coumadin Book

This indispensable book includes:

  • 6 weeks of complete meal plans, with shopping lists
  • 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

Buy the paperback | Buy the eBook (PDF document)

Questions about ordering? Click here to read the FAQ.

How to order by mail: We are happy to accept personal checks drawn on a US bank for delivery within the United States only. Download the form to order by mail. We regret that we are unable to process orders by phone or ship printed books outside the United States.

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 or $12.95 for the paperback book! Shop now!

The Dr. Gourmet Diet Plan

Timothy S. Harlan, M.D. tells you what to eat and when in order to eat healthier, lose weight, and keep it off - permanently!

With The Dr. Gourmet Diet Plan, you'll create a two-week custom meal plan including breakfast, lunch and dinner, for yourself or your entire family - even kids under 14! NO making separate meals. Online planner includes:

1. Automated shopping lists - Just print and shop for the next two weeks of meals.

2. Frozen meal options for lunch or dinner such as Lean Cuisine or Weight Watchers.

3. Easy, delicious recipes, with leftovers for lunches or later in the week.

4. Options for allergies and special diets, including:

  • Vegetarian (lacto-ovo)
  • Low sodium
  • Lactose intolerance
  • Coumadin (warfarin) use
  • GERD / Acid Reflux
  • Gluten allergies (Celiac disease).
  • Diabetes: All meal plans are safe for type 2 diabetics because they are based on the Mediterranean Diet, which is known to be the best diet for type 2 diabetics.

5. Combine special needs if needed: low sodium and lactose intolerant? Coumadin and celiac disease? Just select the options and get your delicious meal plan!

Other Web sites charge you as much as $29.95 per month for this service, but Just Tell Me What to Eat: The Dr. Gourmet Diet Plan is completely free. (We don't even ask for your credit card information.)

Sign up for Just Tell Me What to Eat: The Dr. Gourmet Diet Plan now! »

Ask Dr. Gourmet

Coumadin (warfarin)

Foods and Coumadin (warfarin)


Will non-alcoholic beer affect your Coumadin dose?
Does alcohol interact with Coumadin?

Coffee / Tea

Is rooibos tea safe for Coumadin users?
Can I drink coffee while on Coumadin (warfarin), or should I switch to tea?
Should I avoid caffeinated coffee on Coumadin (warfarin)?
Is regular tea, iced or hot, contraindicated while taking Coumadin?


Isn't it true that garlic CAN interact with Coumadin (warfarin)?
Will eating garlic and ginger in a stir-fry affect my Coumadin (warfarin)?
Is it okay to cook with garlic while on Coumadin (warfarin)?
Does eating garlic counteract eating high amounts of Vitamin K?
Is it okay to cook with garlic while on Coumadin (warfarin)?
Will eating garlic affect my Coumadin (warfarin) or make me bleed?


Is it safe for me to take apple cider vinegar to help me lose weight while I am on Coumadin (warfarin)?
Will apple cider vinegar help my acid reflux while I am on Coumadin (warfarin)?
I've heard that apple cider will help you lose weight. Will apple cider interact with the warfarin I'm on?
Will apple cider vinegar help my acid reflux while I am on Coumadin (warfarin)?

Frozen / Convenience Foods

Is Nutrisystem safe for those on Coumadin (warfarin)?
What does avoiding eating frozen foods have to do with being on Coumadin?
How much parsley is in pizza sauce?
Is Lean Cuisine Coumadin safe?

Fruits / Juices

Would drinking hot water with lemon affect my INR?
Are blueberries and blackberries safe for a Coumadin (warfarin) user to eat regularly?
Are cranberries worse than cranberry juice?
Are juicers a good idea for those on Coumadin (warfarin)?
Can you eat green pickled tomatoes if you are on Coumadin (warfarin)?
Does grapefruit really interact with medications? (See also....)
Should you avoid cranberry juice on Coumadin (warfarin)? Updated information!
Is there a Vitamin K difference between hot-house and home-grown tomatoes?
Does papaya have a blood-thinning effect?

Other Food Questions

Are flounder and sole safe for Coumadin (warfarin) users?
Can my husband have cilantro if he is on Coumadin?
Is orzo safe for Coumadin (warfarin) users?
How much Vitamin K is in pie crust?
Can I eat salads, now that I am off Coumadin (warfarin)?
Would drinking hot water with lemon affect my INR?
Can Eating Activia Have an Effect on INR and Coumadin (warfarin)?
Is it ok to eat tuna and salmon sashimi when you are on Coumadin (warfarin)?
Where does all the sodium come from in your Hummus recipe for Coumadin patients?
Should Coumadin (warfarin) users avoid MSG?
Does chocolate interact with Coumadin (warfarin)?
Is my husband's Coumadin dosage stable because he eats a big salad every day?
Thanks for your lists of foods containing Vitamin K!
I am on Coumadin. Can I eat these foods from Starbuck's or these vegetarian items?
Are almonds a good snack for those on Coumadin?
I can't have broccoli or cauliflower because of its high Vitamin K levels - why is it in your recipes?
Does salt increase INR levels?
Can those on Coumadin (warfarin) eat eggs or Eggbeaters?
Can I cook with parsley while on Coumadin?
Are peanuts affecting my Coumadin?
Are there foods that interact with Coumadin even though they are low in Vitamin K?
Does freezing "kill" the Vitamin K in foods?
Can a person on Coumadin (warfarin) eat black eyed peas?
Can foods low in Vitamin K still affect my INR levels?
Why should people on Coumadin avoid your Eggs Benedict recipe?
Is there a list of Vitamin K in foods?
Does cooking or pickling reduce the amount of Vitamin K in cabbage?
Should I avoid lettuce while on Coumadin?
Does soy interrupt the effectiveness of Coumadin?
I'm on warfarin and my levels fluctuate heavily. Is it because I eat green apples?
Why do Vitamin K levels vary in the same foods?
Should I peel zucchini? (See also...)