> I awoke at 5 AM with a piercing headache and a parched throat. I drank some water and flopped back into bed but it was no use. I was awake, horribly hungover, and hoping that I’d spent the night drinking plain old tequila. Otherwise I’d have to tell Dahl that his science-alcohol didn’t work.

Like any pop-sci article it's not ment to be rigorous, but provide an interesting narritive. Ideally there would a double blind study with control groups given any combination of normal alcohol and hangover free alcohol but I wouldnt expect that level of rigour from a Vice article.