Hmmmm...very interesting. At least you have an answer, but still, this is unusual.
Interestingly, last year a male (human
) friend of ours suddenly was Dx w/ fatty liver - he was normal wt, not diabetic, and not a drinker. My sister is an internist, so I ran all of his tests by her and described what was going on. She indicated that fatty liver is often completely idiopathic, which seems so odd to me, but that's what she said. She also said that it can resolve very easily for some people within 6 months or so. Sure enough, my friend ate a lower fat diet, cut out all alcohol, exercised a little more than usual - and after about 6 mths or so, his liver tested totally normal. So, I know it's awful not to know a cause, but I guess this is common w/ fatty liver.
The Petzlife issue is concerning too...makes me wonder...