Grain Serving 1 slice of bread, 1 cup of ready-to-eat cereal, or ½ cup of cooked rice, cooked pasta, or cooked cereal can be considered as 1 serving from the Grains Group. chart Recommended daily grain servings: The doctor of the future will no longer treat the human frame with drugs, but rather will cure and prevent disease with nutrition. Thomas Edison American InventorAmerican Inventor,