As you probably discovered, but just so everyone’s clear: we can’t eat enough apples at once to overload our liver with fructose, because the fiber in the apples will slow down the absorption rate to something the liver can handle. But we can easily overload the liver with fructose from apple juice, since it lacks fiber. And yeah, children who drink loads of juice and soda are getting fatty liver disease, and some are progressing to worse.
Ancel Benjamin Keys sure has a lot to answer for!