2 grams per dose, and how often should I repeat the dose for you think, 3 hours, 4 hours, 5? Do you think it's possible because I'm a large guy that maybe I need a larger dose? Maeng Da or not, 2 grams and I don't really feel very much. Not much more than a strong coffee really. I've found about 3-4 grams makes me feel happy, focused and takes away my pain.