I am a regular coffee user in the AM and I use pre-workout drinks on and off for exercise; some with caffeine and some without. These energy shots contain the same caffeine as a cup of coffee (of which I usually drink 2-3 a day). The energy I get from these shots is different than coffee, less jittery and scattered, more focused. I would think that replacing 2 cups of coffee with one of these would make me feel less energetic, but I actually felt more energized. For working out: many pre-wor...Read more.