If you can determine who funded the study, that is a good place to start. There is tremendous profit to be made by selling the industrial seed oils (jug oils), because they are dirt cheap to produce. Same thing with high-fructose corn syrup. It's a pretty good bet that any "studies" that found no harm from consuming this junk were funded (in one way or another) by the industries that produce the stuff.
Better to trust internet "experts" selling their own solutions, I say! Supplements, anyone? Perhaps a nice dose of snake oil to go with it?