Researchers demonstrated that fructose was more influential in the accumulation of fat in and around the liver than eating dietary fat: https://www.ub.edu/.../menu_eines/noticies/2022/03/010.html
This parallels prior findings. In fact, other teams have shown you can reduce fatty liver in only six days of eating a HIGH FAT DIET: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7132133/
The rise in American fatty liver disease runs precisely with the popularity of reduced-fat foods. In place of higher dietary fat we substituted fructose and higher carbohydrate concentrations.
This sometimes leads to a confusion of terms. Even really smart researchers sometimes use “High fat diet” to refer to the standard American diet which is 80-90% carbs. In the literature I’ve run into this frequently. Many authors misuse this terminology, which only confuses the public. Likewise, even in this study, the authors over specified “liquid” fructose, as if the chemistry will affect cells dramatically differently. The fact of the matter is the fructose content in 3 servings of apples and grapes exceeds soft drinks: https://www.bodyspec.com/.../fructose_not_so_sweet_after_all. People will have natural syrup, agave, and applesauce, not realizing they’re pumping more fructose into the body than those who avidly drink Coca Cola.
Effective nutrition requires more sophistication than “good” and “bad.” It can be one of the most difficult subjects I cover with clients. But many people who require dramatic weight loss need to take a close look at fruit reduction when we’re troubleshooting their bodies’ resistance against fat loss. Meanwhile, we often have to raise their intake of dietary fats. It doesn’t make fruit bad and high-fat foods good. The question was never about good or bad. It is over what is productive and effective.