Diet for Coumadin®/Warfarin Users

The foods you eat can affect how well Coumadin®/Warfarin works for you. High amounts of vitamin K might work against Coumadin®/Warfarin. Talk to your doctor about the amount of vitamin K that is right for you.

These foods contain vitamin K:

• Beef liver
• Pork liver

• Mayonnaise
• Margarine
• Canola oil
• Soybean oil
• Vitamins
• Soybeans
• Cashews

Fruits and vegetables
• Kiwi
• Blueberries
• Broccoli
• Cabbage
• Brussels sprouts
• Green onions
• Asparagus
• Cauliflower
• Peas
• Lettuce
• Spinach
• Turnip, collard, and mustard greens
• Parsley
• Kale
• Endive

Keep Your Diet the Same
Do not make any major changes in your diet or start a weight loss plan without calling your doctor.
Call your doctor if you are unable to eat for several days, for whatever reason. Also call if you have stomach problems, vomiting, or diarrhea that lasts more than 1 day. These problems could affect your Coumadin®/Warfarin dosage.

Limit alcohol
Alcohol can affect your Coumadin®/Warfarin dosage but it does not mean you must avoid all alcohol. Serious problems can occur with alcohol and Coumadin®/Warfarin when you drink more than 2 drinks a day or when you change your usual pattern. Binge drinking is not good for you. Be careful on special occasions or holidays, and drink only what you usually would on any regular day of the week.