Nut Butters and Warfarin

Publication Date: 
Fri, 05/01/2015
By: Alere Staff

Nuts and nut butters can be a tasty and healthy addition to your diet either in recipes or for snacking. Nuts are rich in antioxidants, as well as vitamin E, folic acid, magnesium, copper and monounsaturated fat. They are rich in fiber and a good source of protein.1

There are several studies that show the health benefits of nuts, especially in reducing the risk of heart disease.2 Most nuts are eaten by the handful as a snack. A one ounce serving of nuts, about a small handful, contains approximately 200 calories. 

Most of these calories come from the heart healthy monounsaturated fat. This small amount per day can be quite satisfying and filling due to the fat and fiber content and can provide you with all of the health benefits.1,3

Go Nuts?

Nuts can be safely eaten when taking warfarin with some considerations.3 Nuts and nut butters do provide Vitamin K but in low quantities, typically less than 12 mcgs per serving.4 Vitamin K content is available on in the WellLife Vitamin K Finder. All nuts are not equal, as some do provide lower amounts of vitamin K than others. Calories and fat content will also be altered by how the nuts are prepared and eaten. Almonds, walnuts, pecans and peanuts have some of the lowest amounts, while cashews and chestnuts have some of the highest. As with any food with vitamin K, it is best to eat the items consistently. If you have increased your consumption of nuts and feel it is reacting with your warfarin, it is best to notify your doctor as it may be necessary to check your INR.

Want to know more about having nuts and nut butters in your diet? Check out these related articles:


  2. Hu FB, Stampfer MJ.  Nut consumption and risk of coronary heart disease: a review of epidemiologic evidence.  Curr Atheroscler Rep. 199 Nov; 1(3):204-9.
  4. WellLife Vitamin K Finder