11 Jun 2014 --- New research published in the Nutrition Journal reveals that calorie-for-calorie, even a serving of instant oatmeal is more filling than a ready-to-eat (RTE), oat-based cereal. Researchers found that eating a bowl of instant oatmeal for breakfast is more satiating and helps to manage hunger better than the same amount of calories from a leading oat-based, cold cereal, even when consumed in smaller portions than previously found.