Gross. Having Gatorade will 100% make me vomit the morning after a night of heavy drinking since it's loaded with sugar. Water, greasy food or pho, and a puff or two from a weed cart is the proper way to alleviate a hangover. If you want some electrolytes, pour some salt into your water.
Also, drinking a ton of water and eating before bed helps too.
Had not heard of it until just now. Looks like its comparable based on a quick Google search. With most things we consume/ingest, what works for one might not work for another. Any hydration after a night of drinking alcohol (a dehydrant) is going to be beneficial. My party days are long behind me, but if they weren't I'd be interested to dry nüun as an alternative and see how it goes.
Hell my wife claims she "never gets hangovers", but when we were drinking she was going 1 shot of tequila to 1 glass of water. Which kind of gave me some confirmation bias that hydration was the key. I drink a glass of wine and I'm ready for a nap.
Love my weed though. Weed has never given me a hangover. It did give me an extra 20lbs from munchies though. :)
Thats probably a big part of why I technically never get or experience hangovers. I am ALWAYS drinking water. I had that Waterminder for a while and I ended up like "wtf am i using this, i literally guzzle the shit compulsively all day to keep my teeth healthy and cleanse palate)