[ethics13]

Did your dad drink? I ask because my dad died of the same (although they never did find the origin other than liver) and he was not a drinker.

[terran57]

Yes, in his earlier life he did, but he had really cut down on drinking in the preceding few years. Reflecting back on that time, I would say he knew something was wrong but was in denial about it.

[mythhouse]

I think > 30% of fatty liver disease comes from insulin resistance

[ethics13]

Yes, I've heard that as well but as I've said, the mystery is that he was 5"10' at 165lbs, he was fit. No diabetes or any health issues at all.