Every time I see a post mentioning vitamin B1 I feel like trying it again. I've already tried megadoses of vitamin B1, I remember taking 30mg of vitamin B1 and nothing happened, but I feel like trying megadoses of vitamin B1 at the same time as I take magnesium. Furthermore, product brands matter, some brands have less effect. I recommend everyone try vitamin b1 as there are studies saying that many of the participants had results and some others did not.