While the other guy mentioned fructose, I'll mention the ethanol thing. The fatty liver disease mentioned has nothing to do with ethanol, in fact it is called N

While the other guy mentioned fructose, I'll mention the ethanol thing. The fatty liver disease mentioned has nothing to do with ethanol, in fact it is called Non-alcoholic fatty liver disease or NAFLD. There are no confirmed causes for it but it varies. In certain population, it's a generic mutation, for some it's from fructose, and so on.