Over a third of the global population is now overweight, and the percentages are increasing. Some neuroscientists have suggested that the rise of so-called "hyperpalatable foods" may partially explain the unprecedented rates of obesity.
Above: The Taco Bell Taco Waffle. Credit: Taco Bell.
Our food environment has changed dramatically over the years, most notably through the introduction of so-called "hyperpalatable" foods. These foods are deliberately engineered in such a way that they surpass the reward properties of traditional foods, such as vegetables, fruits, and nuts. Food chemists achieve this by suffusing products with increased levels of fat, sugar, flavors, and food additives.