“Butter was demonized and replaced with margarine, one of the most supremely stupid nutritional swap-outs in recent memory. Only much later did we discover that the supposedly healthier margarine was laden with trans fats, a really bad kind of fat created by using a kind of turkey baster to inject hydrogen atoms into a liquid (unsaturated) fat, making it more solid and giving it a longer shelf life. (Any time you read “partially hydrogenated oil” or “hydrogenated oil” in a list of ingredients, that means the food in question contains trans fats.) Unlike saturated fats from whole foods such as butter, trans fats (at least the manmade kind) actually do increase the risk for heart disease and strokes!”