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Some foods you eat affect the way warfarin works in your body. It is most important to eat a healthy, consistent, and balanced diet. If you eat more vitamin K, it can lower your INR.
If you eat less vitamin K, it can raise your INR.
What Is High In Vitamin K?
The most common foods with high vitamin K are green leafy vegetables such as kale, collard greens, broccoli, spinach, cabbage, and lettuce. Foods with vitamin K that could affect warfarin are listed on the next 2 pages. Vitamin K can also be found in some nutrition supplements, such as:
Boost ® , Ensure ® , and Slim Fast ®
, , and Certain multiple vitamins and Viactiv ® calcium chews
calcium chews Tobacco, such as cigarettes and chewing tobacco
Talk with your provider if you have questions about vitamin K.
Vitamin K foods
Try and keep the same amount of vitamin K in your diet each day.
All foods are okay, but do not make big changes to how much or what you eat. Check with your provider before making any big changes to your diet. Very high in vitamin K (more than 800 mcg per serving)
Food Portion Size Kale (frozen, cooked, boiled) 1 cup Spinach (frozen, cooked, boiled) 1 cup Collards (frozen, cooked, boiled) 1 cup Turnip greens (frozen, cooked, boiled) 1 cup
High in vitamin K (400 to 800 mcg per serving)
Food Portion Size Beet greens 1 cup Dandelion greens 1 cup Mustard greens 1 cup
Medium in vitamin K (80 to 400 mcg per serving)
Food Portion Size Spinach (raw, leaf) 1 cup Brussel sprouts 1 cup Broccoli 1 cup Onions (springs or scallions, tops and bulb) 1 cup Lettuce (iceberg) 1 head Lettuce (green leaf) 1 cup Cabbage 1 cup Asparagus 1 cup Endive 1cup Parsley 10 sprigs Okra 1 cup
Tables were adapted from the USDA National Nutrient database for Standard Referenc.
What Do I Need To Know About My Diet?
Some foods you eat affect the way warfarin works in your body. Try and keep eating what you normally do. It is most important to eat a healthy, consistent, and balanced diet.
If you eat more vitamin K, it can lower your INR. If you eat less vitamin K, it can raise your INR. Important things to know about vitamin K are:
Eat about the same amount of foods high in vitamin K each day.
The most common foods with high vitamin K are green leafy vegetables such as kale, collard greens, broccoli, spinach, cabbage, and lettuce. All foods are okay, but do not make big changes to how much or what you eat. Check with your provider before making any big changes to your diet.
20 Foods High In Vitamin K
Utrient that plays a vital role in blood clotting and bone and heart health. While vitamin K deficiency is rare, less than optimal intake may impair your health over time. A daily value (DV) of 120 mcg should prevent insufficiency in most people.
This article lists 20 foods that provide high amounts of vitamin K. Additionally, it includes 5 lists of vitamin K sources categorized by food grou.
Foods High In Vitamin K
There are two types of vitamin K: vitamin K-1 and vitamin K-2. Vitamin K-2 is found in just a few animal sources and some fermented vegetables, such as natto, a fermented soybean dish.
Although some of the herbs, such as basil and thyme, seem to contain very high amounts of vitamin K, it is unlikely that a person would use such large quantities while cooking.