What is Bullet Proof Coffee?

Glass mug filled with black coffee, a cube of grass-fed Kerrygold butter with a butter knife beside it with blue checkered towel in the background

Have you heard of Bulletproof Coffee?  Believe it or not, I first heard of it when watching a Hawaii 5-0 episode. The scene plays out like this…Character Steve McGarrett brews up a cup, nonchalantly adds butter and espouses all its benefits to Danno, who looks at him utterly disgusted.

Bulletproof coffee or Keto Coffee is simply coffee with butter, (preferably grass-fed) added to it.  It is high in fat and has no carbohydrates.  Those on ketogenic diets often drink bulletproof coffee as a breakfast meal substitute because it has a rich, full flavor and due to the fat from the butter, helps with feeling full and satisfied.  Not only that, it also reduces cravings, and burns fat.  The grass-fed butter contains the fatty acid Conjugated Linoleic Acid (CLA), and has been reported to help to improve brain function, reduce the risk of diabetes, limit your chance of heart disease, and even certain cancers.

So where did the idea of adding butter to your coffee come from?   You have to go back to the 9th century in Ethiopia when people began grinding the roasted beans and mixing them with ghee, which clarified butter.  Over time Ethiopians continued to add ghee to their brewed coffee, sometimes with spices or salt.

Some Bulletproof recipes include MCT (medium chain triglycerides) oil and cinnamon in addition to the grass-fed butter.  If you have a milk frother, use it to blend and mix the ingredients to produce a frothy, foamy mouthfeel of creamy deliciousness.

Caffeine acts like an appetite suppressant, but you will still receive the health benefits when using decaf coffee as well. 

Here are a couple of recipes for you to try. 

  • 1 cup of black coffee
  • ½–1 tablespoon butter


  • 1 cup of black coffee
  • ½ tablespoon butter
  • ¼ tablespoon coconut oil
  • ¼ tablespoon MCT oil

*Add cinnamon to taste, if you wish.


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