Brief discussion from off blog about this study:
Finally got to download supplementary data, table 1. Unfortunately the authors lied about this giving the diet composition! While giving a detailed breakdown of the evil fat, no suggestion was made as to the composition of the carbohydrate. "Lab chow" (is almost always starch) is being compared to a "high fat" diet of unspecified carbohydrate composition which produces fatty liver. It probably tastes sweet too.
There was a time when this sort of research was published only in hard copy, which was useful as an emergency source of loo roll. Now it's all electronic and even the supplementary data are useless for that delicate purpose...
However, the supplementary data do tell us that the high fat mice were obese, hyperglycaemic and hyperinsulinaemic. So I guess they were eating their fat in the form of concentrated Fanta...
But no one is saying in the methods or supplementary data. This is not science!