@Tom.G
Sure. My answer was aimed for the OP. US humans of any age are at risk. There are case studies of type II diabetes patients. Absurdly enough: in the US type II occurs at almost any age, but incidence rate is an increasing function of age and population:
Adolescents --
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3874486/
So all of this is applicable to the entire US population.
Sucrose is a dimer - fructose and glucose. Fructose is the problem. Glucose is not.
Our fructose metabolism evolved as a means of getting fruit like berries in the human diet. It is relatively new to primates and evolved in support of our need for Vitamin C. Glucose metabolism (like Krebs Cycle) is truly ancient. Our bodes are really good at using it, not so much with fructose.
Cane sugar and/or high fructose corn syrup are new to our diet. Our biochemistry did not keep up with the changes.
I hope this paper is readable enough to answer your questions about the relationship of fructose consumption to NAFLD.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5893377/
The average US citizen consumes 152 pounds per year of sugar. Approx: 68946g. Divide that by 365 and you will see excess.
Data sources:
Per US HHS, 152 pounds of sugar came from here:
https://www.dhhs.nh.gov/dphs/nhp/documents/sugar.pdf
About 15g/day of Corn Syrup from here:
https://www.statista.com/statistics...mption-of-high-fructose-corn-syrup-in-the-us/
Perhaps this why the US FDA mandated the "added sugars" line in the nutrition label on processed foods.