They’re not as healthy as you might think

We’ve come a long way from the low- to no-fat diet trends of the 1980s and 90s—we finally understand that fat is not only good for us, but necessary for our bodies to function—but when it comes to understanding which fats are actually healthy, and those that are not, we’ve still got a long way to go. Case in point: high omega-6 oils like corn, sunflower, and soybean oils.