I'm part of the ten percent if it really does nothing to me? Please do something to back up your numbers. I'm not extrapolating from my N=1--I said, I live on cream and coffee, and then that I doubt this dairy/coffee/liver thing is a general thing. I didn't say that one conclusion came from the other, although I can see how you could think I was implying it.

I certainly don't think it's a 90 percent of people thing without some hard data. What you're saying about the headaches--yes, it's true that a lot of people get headaches from caffeine withdrawal with coffee, or misdosing, I've experienced this myself. Doesn't seem to happen for me individually, any more, since I went keto. Just an anecdote, I know.