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For example, vitamin K can make warfarin less effective. So it's important to get about the same amount of vitamin K every day. The recommended daily amount of vitamin K for adult men is 120 micrograms (mcg). For adult women, it's 90 mcg.
If you take a blood thinning medication, such as warfarin (Coumadin®), vitamin K can raise your risk for blood clots. That doesn’t necessarily mean you need to avoid all vitamin K-rich foods.
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.
If you change your diet and eat fewer foods containing vitamin K, you may need to take less warfarin. Work with your doctor to find the right dose for you.
These foods have less than 35 mcg per serving. People on Warfarin need consistent levels of vitamin K each day. The foods shown here, when consumed in normal portion sizes, are less likely to affect your INR.
Vitamin K - Eating more foods rich in vitamin K can lower the PT and INR, making warfarin less effective and potentially increasing the risk of blood clots. People who take warfarin should eat a relatively similar amount of vitamin K each week.
A cup of raw spinach contains about 145 mcg of vitamin K, whereas 1 cup of cooked broccoli contains about 220 mcg of vitamin K. How are patients who take blood thinners monitored? Warfarin doses need to be monitored closely.
Print . Warfarin and Vitamin K. Overview. Media Gallery (3 videos) Warfarin: 5 Things You Can Do to Take It Safely. Warfarin: Keeping Vitamin K in Balance. Warfarin: Why Taking It Is Worth It. Warfarin is a pill that you take regularly to help prevent blood clots or to keep a clot from getting bigger.
What foods provide vitamin K? Vitamin K is found naturally in many foods. You can get recommended amounts of vitamin K by eating a variety of foods, including the following: • Green leafy vegetables, such as spinach, kale, broccoli, and lettuce • Vegetable oils • Some fruits, such as blueberries and figs • Meat, cheese, eggs, and soybeans
Warfarin and Your Diet. What is warfarin? Warfarin (or Coumadin®) is a medicine that helps “thin” your blood so that it clots more slowly. It does this by reducing blood clotting proteins made with vitamin K in your liver. What should I eat while taking warfarin?