250 mg/day is 4.4 mg/kg. In the mouse study published in Cell they used 400 mg/kg/day. I believe safety at these levels is irrevelant, so I prefer just working

250 mg/day is 4.4 mg/kg. In the mouse study published in Cell they used 400 mg/kg/day. I believe safety at these levels is irrevelant, so I prefer just working out every day and limiting my sugar and alcohol intake, all of which have proven life extension effects.