Sugar has a bad reputation, and for good reason. Not only can sugar contribute to type 2 diabetes, but it has been linked to many other health complications. The verdict is in and sugar is definitely out. But new research suggests this oil is worse for you than sugar. So what’s the biggest food villain out there? It’s soybean oil. Soybean oil worse than sugar Recently published in the journal PLoS One, researchers uncovered that soybean oil is far worse for you than sugar. To come to their findings, researchers fed mice a series of diets consisting of 40 percent fat. The first diet consisted of mainly saturated fat from coconut oil. The second diet was unsaturated fat stemming from soybean oil. Mice were also fed alternative diets of high-fat containing fructose.