I have been drinking bulletproof-style coffee a few days a week since moving to PA. At first I used coconut oil instead of MCT oil and up until Friday, I was using regular coffee beans instead of upgraded coffee beans.
When I first began drinking the bulletproof-style coffee, I found that it was pretty effective at keeping me full and pretty attentive. I noticed the effects diminishing over time. I decided to try the upgraded beans and here's what I found with my first cup of real deal bulletproof coffee:
1. I tried a few sips of it black. It went down very smoothly. Comparing it to regular coffee is like comparing a fine whisky to Jack Daniels.
2. When mixed with the butter and MCT oil, the resulting coffee tasted a bit buttery compared to when not using the upgraded beans.
3. I felt really zoned in for a while at home but that may have gone away by the time I went to school. I had a pretty hectic day but managed to plow through it. I'm going to need to increase my sample size to determine if I get a giant performance boost. Will update at some point in the future.