I'd recommend reading Good Calories, Bad Calories by Gary Taubes. He explains how this is not really the case. It was written back in 2007; I'm sure there's more research out there to prove this point.
Taubes' end-of-the-book hypothesis about Atkins diets and the like isn't that great, but the whole initial portion of the book trashing the fat hypothesis is great. If you enjoy scientific writing, I promise that you will get a lot out of it, whether you agree with him or not. He's a fantastic writer, and an exhaustive researcher.