I've been reading about people using insulin to lose body fat but im still not sure how i should go about doing it. I have type 1 diabetes and im on a insulin pump. My insulin is fast acting...........If I understand right it seems like most people take around 10 units after working out. But with me being on a pump I get insulin all day long and when I eat I can take more. What I really want to know is When and how much should I take.