Looking at all the no-fat and reduced-fat foods in the grocery store, you might think that eating fat is some kind of revolutionary, new concept. But the fact of the matter is that there is nothing “newfangled” about eating foods rich in dietary fats. Humans all over the world evolved eating traditional diets full of naturally occurring animal and plant-based fats. What’s actually “newfangled” is all the processed foods that have had their natural fat content removed and replaced with artificial sweeteners and emulsifiers to give them some flavor back. These kinds of foods have really only been popular since the 1980s, and their popularity depends, in part, on the perpetuation of several myths about fat.