Peter Attia· MD
what I would observe is maximum fat oxidation was 1.3 G per minute and that occurred almost immediately and it sustained until I hit my well let me think I it was sustained until about so at the time my FTP was about 4.1 watts per kilo this would have been SU stained until about 3.5 watts per kilo so at 3.5 watts per kilo I was still oxidizing about 1.2 gram per minute and then that sort of fell off and glucose become be became then the dominant fuel source