Coffee Coffee, both caffeinated and decaffeinated, is permitted during a fast. We also permit a small amount of cream or coconut oil to be added to coffee or tea. While this does technically mean it’s not a true fast, the effect is small enough that it seems to make no difference to the overall outcome of the fast. Furthermore, this flexibility may improve your ability to stick to the program. By “small amount,” we mean 1 to 2 teaspoons of cream or coconut oil—nowhere near the copious amounts of fat used in bulletproof coffee.
