[IGotTheCottons]

niacin is vitamine b3. they speed up your metabolism which causes your body to burn fat a lot faster. depending on his body fat percentage and how much he smokes it may take more or less time.

my advice would be to just get 'em at wal-mart. go with the Sundown 500mg Time Release capsules. tell him to break the first one in half and eat both halves after breakfast. after lunch just eat a whole one (or if he's brave break that one in half and eat both halves as well)... it's important that he eats before taking them to make sure the pills digest fully.

the increase in his metabolism might make him feel really hot and he'll probably turn bright red. this will stop happening after a few days to a week when his body gets used to it. the time release will help with this... so it probably won't be too bad. if it happens have him drink a lot of water to keep hydrated.