Can human body actually make use of alcohol as energy? Because I was fairly sure we can only make energy of something that breaks down to glucose, which alcohol obviously doesn't.
Not so sure already.
Not so sure already.
Much of lipid and protein catabolism also does not rely on glucose as an intermediate. Everything that doesn't get converted to glucose first will get converted to acetyl-CoA (glucose catabolites turn into this too) for use in the Krebs cycle.
Edit: I should have read TFA before commenting.
The system that eventually extracts energy from glucose (the citric acid cycle, also called the Krebs cycle) is involved, after the liver converts the ethanol.
If you look back far enough, some early brewing, like that of ancient Egypt, made beer so thick that mugs would often come with straws built into them so people could get past the thick layer of almost-solid grains that would float to the top.