This is purely my opinion, but after working in the beverage business for thirteen years my experience is telling me this is more urban legend. I call it very irresponsable marketing. If you drink lots of alcohol and then suddenly stop your body goes into sugar shock. If you get a hangover from a drink or two, maybe this might be for you. I actually have three gallons of nine year old prickely pear cactus fruit mead. Good stuff the inside of the fruit looks like blood. I think you are searching for the city of gold going for a hangover free alcoholic beverage though.
CBO "Chief Brewing Officer" / Zymurgist
Bluegrass Brewing Co
636 East Main St