> “is it bad for my liver to be on most of the time?”

That's a good question!

I'm not sure. My guess would be its perfectly healthy (normal actually) to have 10x levels of ketones constantly than an American eating the SAD (Standard American Diet).

Anyone know of long term datasets that have looked at this in animals?

Continuous Ketone Monitors for humans have _just_ come out (AFAIK), so we should know soon.