> I didn't consider myself a heavy coffee drinker either. Perhaps 2-3 coffees a day, these were double shot espresso's. That's a lot of caffeine - at or beyond

> I didn't consider myself a heavy coffee drinker either. Perhaps 2-3 coffees a day, these were double shot espresso's. That's a lot of caffeine - at or beyond the typically recommended daily maximum of 400mg.