Thanks for pointing that out, I've added a bit to my last paragraph in the mentioned post.

I'm not having tons of luck with quantitatively relating alcohol consumption with lifespan extension in a reliable and satisfying way that allows the risks vs. benefits of consumption of moderate amounts of alcohol to be compared. I'm going to give up on this for now, since it has the potential to become very time consuming.

All of the studies on CR I was able to find were in monkeys and other nonhuman animals, but there's a proposed mechanism for CR's positive effects on longevity-- reduction of oxidative stress.