[fatherwavelet]

It is because this subject is the closest to modern voodoo of all modern activities.

I rolled the bones myself and it seemed like it worked, therefor X.

No, I rolled the bones myself and it seemed like it worked, therefor Y.

We would first have to define what we are even talking about by "energy" and "workout" to have any kind of real conversation.

The popular mind on this subject is also not even up to the point we sequenced the genome. What people think of as truth is mostly repeating things from the 1990s.I rolled the bones myself and it seemed like it worked.

[weird-eye-issue]

Well I think it largely depends on how well trained you are because metabolic flexibility is something that gets trained. Without it your body has a hard time burning fats for fuel and so you'll feel terrible if you don't have an immediate glycogen store. When you are well trained you can do things like literally run several marathons while fasted which is documented. So whether it "works" or not will just depend largely on if your body has adapted to it