Image source: New York Times

The Paleo diet is based on the belief that we should eat foods that our ancestors ate. Typically this means that Paleo diet followers stick to diet high in meats and vegetables, and steer clear of carbohydrates. Newly published research is arguing this notion, and hypothesizes that the human brain needed glucose provided by carbohydrates to evolve.

Read more about the interconnection of glucose metabolism and human evolution at The New York Times.