Warfarin is a blood-thinning medication that helps treat and prevent blood clots.However, certain foods and beverages can make warfarin less effective in preventing blood clots.The adequate intake level of vitamin K for adult men is 120 micrograms (mcg).Certain drinks can increase the effect of warfarin, leading to bleeding problems.Avoid or consume only small amounts of these drinks when taking warfarin:.Talk to your doctor before making any major changes in your diet and before starting any over-the-counter medications, vitamins or herbal supplements.If you are unable to eat for several days or have ongoing stomach upset, diarrhea or fever, consult your doctor. .

Warfarin and Vitamin K

To ensure that warfarin is effectively thinning your blood, it's important to eat about the same amount of vitamin K every day.Check with your doctor before you make big changes in what you eat, such as starting a diet to lose weight.If you want to start eating more of a food that's rich in vitamin K, talk to your doctor about how to add it safely.Your lab results are called your Prothrombin Time (PT) and International Normalized Ratio (INR) values.A low INR means that warfarin isn't working well enough to prevent a dangerous blood clot.A low INR means that warfarin isn't working well enough to prevent a dangerous blood clot.A high INR means that warfarin is working too well, so you bleed more quickly and easily. .

Study: Leafy Greens OK For People on Warfarin

A new study suggests that -- despite doctor warnings to the contrary -- you can eat leafy greens rich in vitamin K if you are taking the blood thinner warfarin. .

Warfarin, your diet, and vitamin K foods

Some foods you eat affect the way warfarin works in your body.It is most important to eat a healthy, consistent, and balanced diet.Eat about the same amount of foods high in vitamin K each day.Contact your provider if there are sudden or big changes in your diet due to illness.Foods with vitamin K that could affect warfarin are listed on the next 2 pages.Tables were adapted from the USDA National Nutrient database for Standard Reference. .

Vitamin K and Warfarin (Coumadin): What You Should Know

In doing so, vitamin K plays a role in your body's natural clotting process.Warfarin works against vitamin K. Specifically, warfarin reduces your liver's ability to use vitamin K to produce normally functioning forms of the blood clotting proteins.By reducing the liver's ability to use vitamin K to produce normally functioning forms of the blood clotting proteins, warfarin reduces your risk of forming a blood clot.Also, reducing the amount of vitamin K in your diet may make it more difficult to manage your warfarin therapy.For more information on the INR, please review the Understanding the PT-INR Test section of ClotCare.Why would a diet low in vitamin K make my INR more difficult to manage?As a "rule of thumb", green vegetables, especially leafy green vegetables, and certain oils have a high content of vitamin K.

Most fruits, meats, dairy products, and grains are low in vitamin K. As a resource to use in making consistent dietary decisions, ClotCare provides a list of certain foods and their relative content of vitamin K (i.e.

low, moderate, or high).You can also click here for information on the vitamin K content of foods available on the NutritionData website. .

Blood Thinners and Greens: A Mix to Avoid? How to Eat Well for

The INR is a test used by doctors and pharmacists to check the effectiveness of blood thinning medication (Coumadin/warfarin) and to adapt the dosage.For your information, here are a few examples of natural products that could influence your INR more than eating green vegetables:.Those which increase INR values: Boldo and fenugreek Cranberry juice (in large quantities) Danshen Devil’s Claw Dong Quai Garlic capsules Ginger Ginko biloba Mayweed Papain Vitamin E (in doses larger than 400 units/day).Those which reduce INR values: Coenzyme Q10 Ginseng Green tea (in large quantities) St. John’s Wort.Two main reasons can explain why reducing your intake of green vegetables is not necessary, even if you’re going through anticoagulation therapy.For these reasons, we recommend an intake of 1 to 2 portions of green vegetables each day, even for those taking Coumadin.Note: if you are a fan of Asian cuisine and regularly eat natto (a traditional Japanese food made from fermented soya beans), it would be a good idea to avoid it, because it contains a large quantity of Vitamin K (much higher than what is commonly found in vegetables), which can influence your INR.High Content Cabbage, Brussels sprouts, spinach, kale, turnips Average Content Asparagus, avocado, broccoli, carrots, celery, cauliflower, red cabbage, cucumber, watercress, green beans, oils (canola, olive, soya), lettuce (Boston, Iceberg, romaine), fresh parsley, leek, green peas, tomato.So, in answer to the original question, no, it isn’t necessary to avoid green vegetables because the Vitamin K they contain enables a better control of both coagulation and medication.Our heart-healthy menus are approved by the nutritionists at EPIC, Montreal Heart Institute’s Center for Preventative Medicine, even for their anticoagulation therapy patients.


Spinach, Vitamin K and Warfarin

2 If a serving of spinach is part of your daily diet, you can typically maintain your regular eating habits.Likewise, if spinach isn’t a normal part of your daily diet and you suddenly eat a large amount, it can have an effect. .

Diet and Warfarin: What You Need to Know

Warfarin is a type of medication that a healthcare professional may prescribe for people with certain health conditions or risks.There are steps that you can take to help make warfarin as effective as possible.In this article, we’ll: tell you how foods you eat can affect how well your warfarin works.A healthcare professional may prescribe it to: people who have previously experienced a heart attack.In addition, it treats blood clots if they do form by preventing them from getting larger.If blood clots are not treated, they can lead to stroke, heart attack, or other serious conditions.One way you can help warfarin work its best is by avoiding big changes in the amount of vitamin K you get through food.Warfarin works because you usually have consistent levels of vitamin K in your body.alcohol Green tea contains vitamin K and could lower the effectiveness of warfarin.Some vegetables and fruits low in vitamin K include: sweet corn.bananas For a comprehensive list of foods containing vitamin K, visit the U.S. Department of Agriculture’s composition database .This is a number that your healthcare professional will monitor if you’re taking warfarin to see how quickly your blood clots.To help keep your INR in this range, it’s important to: Follow your doctor’s recommendations and take your medication as prescribed.Avoid trying a new diet or taking a new herbal product or supplement. .

Warfarin: a blood-thinning medicine to treat and prevent blood clots

The tablets and the boxes they come in are different colours to make it easier for you to take the right dose.This is so that if you need to change the dose after a routine blood test, you can do this the same day rather than waiting until the following morning.Warfarin does not usually upset your stomach, so you can take it whether you have eaten recently or not.If you have had a blood clot in your leg or lungs, you'll probably take a short course of warfarin for 6 weeks to 6 months.The aim of treatment with warfarin is to thin your blood but not stop it clotting completely.You'll have a regular blood test called the international normalised ratio (INR).If the blood test result has gone up or down, your warfarin dose will be increased or decreased.You'll have the blood tests at your GP surgery or local hospital's anticoagulant clinic.It's a good idea to take your yellow book with you to all your warfarin appointments. .

Don't Eat These Foods If You Take Blood Thinners or Statins

If you take medicine for your heart, doctors recommend staying away from some foods because of the risk of interaction.Foods high in vitamin K can counteract the blood-thinning effects of warfarin (Coumadin®).You should also enjoy green tea, alcohol and cranberry juice in moderation.Grapefruit and other citrus fruits can interfere with how your body metabolizes these medications. .


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