Microwave Dinners and Warfarin

Publication Date: 
Tue, 12/01/2015
By: Alere Staff

  Just stroll down the frozen food aisle at your local grocery store and you will see many varieties of microwave dinners. Life can be busy and it may be easy to substitute one of these quick, pre-prepared meals for cooking from scratch. The contents of your meal should be considered as part of your diet. You know that while taking warfarin it is important to keep your Vitamin K intake consistent every day. The companies that make these frozen dinners do not provide the Vitamin K content of their products.1,2

You will need to check the ingredient list carefully for those foods that are higher in Vitamin K (but even then you can’t be completely sure). There is a lot of room for error and it could potentially affect your INR results.1,2

While more time consuming, your diet is better managed when starting with fresh ingredients and preparing your meals at home. You can calculate the Vitamin K content of each individual ingredient to keep your intake consistent. Our Vitamin K Finder can be helpful when planning your meals.

If you are looking to be able to have quick meals most days, think about having a food preparation day, where you make all of your meals for the coming week. Once prepared, you can freeze individual portions so that if you have a busy week ahead you can just grab your meal from the freezer and heat it up or use other methods like a crock pot to make daily prep time minimal. Be proud of your efforts to feed your body with healthy foods, knowing the exact amount of Vitamin K in each meal!


  1. Harlan, T.S., MD, FACP. Are Lean Cuisine Meals Safe for Coumadin (Warfarin) Users? Dr. Gourmet. September 22, 2015. Retrieved from website:http://www.drgourmet.com/askdrgourmet/coumadin-leancuisine.shtml#.Vku1gE3Y0dU.
  2. Harlan, T.S., MD, FACP. What Does Avoiding Eating Frozen Foods Have to Do With Being on Coumadin? Dr. Gourmet. September 22, 2015. Retrieved from website:http://www.drgourmet.com/askdrgourmet/coumadin/frozenfoods.shtml#.Vku1h03Y0dU.