Hi Beckster, I would say that for most people most of the time 800mcg is entirely satisfactory. I did well on that until the glutathione precursor trial. I'm on more but plan to start decreasing in another 2 weeks. On the L-carnitine fumarate 125mg is quite possibly a good amount to start with. It can be very energetic in reaction. It works with the adb12. Of course you may not have a shortage there and then it will do nothing. For me at least 500mg once a day 30 minutes before food is as good as it gets. Good to here things are going well. Don't forget that exercise is an important part of recovery. Start increasing as soon as exercise tolerance developes. Start low and slow and increase slowly. Recovery can take longer than healing.