lol yah 40mg is an amount that would do not so good things to someone i would think (maybe a trip to the er? someone else might be able to comment...), yah organic selenium which is selenomethionine (i take this)is the one recommended i think (someone correct me if im wrong)- something super interesting , if youve seen the movie "the informant" with matt damon (excellent movie i thought) then check out videos of mark whitacre (who the movie is based on) on youtube. guy has been researching selenium for a looong time and on their he speaks of the best form to take (pretty sure he says selenomethionine), so yeh very interesting to see the movie then watch the real mark whitacre speak gl