You might find those same results micro-dosing anything from a self-selected group. I bet you'd find a group of ice cream enthusiasts that would be onboard for this.
That said, I am supportive of more rigorous studies along these lines.
I certainly self-report higher levels of satisfaction, lower levels of depression and anxiety when I dose with ice cream. I don't really do the micro part though. Full dose only. Let me know if you want to do a double blind study. We might face some study problems since I can certainly tell if I'm in the placebo group. If you can come up with a viable ice cream placebo I'm all ears.
If a tiny sip of beer every couple of days had such marked benefits and few downsides, I feel like it would be legitimately considered as at least an option.
I feel like at this point it's pretty well established that having a few glasses of wine a week was actually associated with being upper class, which was why those studies correlated it with better health outcomes.
It's also a problem that not drinking at all is a leading indicator that you are already sick (i.e. you stop drinking because you can't tolerate it, but you can't tolerate it because something is wrong which is not yet diagnosed but will be in a later assessment).
