Technically, it's possible to get rid of a fatty liver by greatly reducing calories, regardless of diet, according to prior studies. It is also possible to eliminate fatty liver through pantethine use (I posted that study this past year and I have a relative with ultrasound before and MRI after scans that showed the fatty liver was gone (with the doctor saying the same), despite being around 20-25% on the body mass side).
Personally, I agree that the practical way for people is to change their diet and increase exercise, because eating your normal diet at a crash diet-level of calories is both difficult, and still not feeding you as well as you needed on other fronts.
Choline and inositol (I actually think more the inositol than choline, but they still say both) are also very effective for fatty liver. I take both that and the pantethine, which I credit you for posting here about so much and leading me to do my due diligence on it. Thank you! :-)