Coconut Water

Publication Date: 
Tue, 06/1/2014
By: Alere Staff

The latest health craze includes coconut water claims to help a host of ailments while hydrating the body. Coconut water is a type of juice, not water with coconut flavor added. It's the fluid inside a young green coconut, not to be confused with coconut milk, which is a mixture of coconut water and fresh grated coconut.

The nutrition of coconut water is well known: it contains proteins, fats and minerals such as sodium, potassium, magnesium and calcium electrolytes.1, 2 Coconut water also has numerous medicinal uses such as antibacterial, antifungal, antiviral, antiparasitic, antidermatophytic, antioxidant, hypoglycemic, hepatoprotective, immunostimulant.3

Naturally refreshing, coconut water has a sweet, nutty taste. It also has fewer calories, less sodium, and more potassium than a sports drink. Most unflavored coconut water contains 5.45 calories, 1.3 grams sugar, 61 milligrams (mg) of potassium, and 5.45 mg of sodium per eight ounce serving.4 As for vitamin K, according to the USDA, coconut water contains no vitamin K.4 Like anything else, the key is to drink it in moderation and to choose plain coconut water and to avoid those with added sugar or juices.

If you take warfarin, it is important to remain consistent with your choices of food and drink. This means you can enjoy all your favorites provided you share those choices with your doctor or nurse so your medication can be adjusted as needed. Consistency in diet means to be aware of the type of foods you choose every day, pay attention to your portion sizes and be aware of the frequency you consume foods high in vitamin K. For more information about the amount of vitamin K in the foods and beverages you consume, check out our Vitamin K Finder.

Very few studies have been done to review the potential for interaction between botanicals and other natural products with warfarin. There have been no studies on the effects of coconut on warfarin.

It is important to talk with your doctor about starting any new foods because they can interact with your warfarin, so please keep this in mind when planning your next meal.

  1. Chumbimuni-Torres KY, Kubota LT 2006. Simultaneous determination of calcium and potassium in coconut water by a flow-injection method with tubular potentiometric sensors. J Food Comp Anal 19: 225-230.
  2. Jirovetz L, Buchbauer G, Ngassoum MB 2003. Solid-phase-microextraction-headspace aroma compounds of coconut (Cocos nucifera) milk and meat from cameroon. Ernährung Nutr 27: 300-303.
  3. Manisha DebMandala, Shyamapada Mandal. Coconut (Cocos nucifera L.: Arecaceae): In health promotion and disease prevention. Asian Pacific Journal of Tropical Medicine. Vol 4, Issue 3, 2011, Pgs 241–247.
  4. U.S. Department of Agriculture, Agricultural Research Service. 2004. USDA National Nutrient Database for Standard Reference, Release 17. Nutrient Data Laboratory Home Page,