I have taken DNP at 200 mg, 400 mg, and 500 mg per day. Obviously the higher you go the more side effects you feel. Insomnia, sweating all the time. etc.
But it was an excellent fat burner. Oddly enough I got so freakin hungry on it. I ate and ate and still lost weight like mad. That at 400 mg and 500 mg perday for a short duration.
My next run will only be at 200 mg a day. Much more manageable. I think people need the mindset of not trying to lose fat too fast. Lower dose gradual loss I believe is best.