Eating across the color spectrum helps keep your nutrients in balance

Have you ever wondered why blue M&Ms were the last ones to show up, long after red, green, yellow and brown had been melting in your mouth, not in your hand, for years? Until the advent of artificial colorings and flavorings, blue foods just didn’t seem right to most people, and for good reason: other than blueberries and blue-purple potatoes, there are very few naturally occurring blue foods on this planet. For our ancestors, blue was a color warning