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Were the drinks good? Less hangover inducing?

Regarding the deuterated version, it's actually possible it would have very different pharmacokinetics to normal ethanol. The first step in metabolism involves breaking the -O-H bond to create the =O aldehyde, so replacing that with a heaver -O-D would have a kinetic effect.

For example, here's a Derek Lowe article about deuterated drugs (not ethanol):

- "So a well placed deuterium (or two, or three) can actually have a significant effect on how long a drug will circulate in the bloodstream, by slowing down the liver's clearance mechanism."

https://www.science.org/content/blog-post/first-deuterated-d... ("The First Deuterated Drug Arrives")

Something to keep in mind is that since normal hydrogen is about 0.1% deuterium, all hydrogen-containing molecules end up also 0.1% deuterated by default - so the effects of a deuterated molecule can only differ from the normal to the point that in 0.1% concentration it would not be noticed.

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