In your experiment, how about add inosine (I dump a gram onto a spoonful of ice cream), some OJ concentrate - along with the thiamine, et al. ?I have read through this thread again, since I am still having issues with caffeine stress response. Going to attempt the ~1,000mg daily range and push through the stress response with B1/B3/cypro/theanine/taurine. Using K2 ~10mg.
Been using 200-400mg caffeine daily for the past year and glycogen storage is still not optimal. So I suspect fibrosis issues over NAFLD, as also been doing PUFA depletion for 6 months (zero fat and zero starch).
Will try to update, week by week.