Salted Caramel Cookie Crumble Bars from the Paleo Baking at Home cookbook Sugar is everywhere, hiding in places you'd never think to look (like bone broth, bread, savory sauces). Sugar is a known neurotoxin, linked to anxiety, weight gain, heart disease, and even cancer. If a food or drink is processed at all, it likely contains sugar. If you read labels, refined sugar can masquerade by many different names including white sugar, brown sugar, corn syrup, high fructose corn syrup, and sweeteneres ending in