Retro Foods are foods for the Deli isle of your favorite grocery store. The Carbohydrates of foods experience a starch retrogradation when prepared and chilled overnight giving the consumer the opportunity to consume starches without the guilt! Retrograded foods are digested similar to that of a starch in its raw state. retrograded starches are not digested by the small intestine as sugars and starches but instead by the gut bacteria in the large intestine. Carbs can be Cool!