High-intensity training performed for 20 to 60 minutes can lead to an earlier switchover point for enhanced fat burning when performed in a fasted state compared to after eating.

“If one does high-intensity training or even the very high-intensity forms of training like sprints or squats or deadlifts or any kind of activity that can't be maintained for more than these eight or I would say up to 60 seconds, so a set of lifting weights repeated, repeated. If that's done for anywhere from 20 minutes, so weight training or powerlifting or these kinds of things or kettlebell swings, or up to 60 minutes, well, then the switch-over point in-which you can burn more fat if you go into that fasted comes earlier.”

“If one does high-intensity training or even the very high-intensity forms of training like sprints or squats or deadlifts or any kind of activity that can't be maintained for more than these eight or I would say up to 60 seconds, so a set of lifting weights repeated, repeated. If that's done for anywhere from 20 minutes, so weight training or powerlifting or these kinds of things or kettlebell swings, or up to 60 minutes, well, then the switch-over point in-which you can burn more fat if you go into that fasted comes earlier.”