Cinnamon Toast Crunch Cereal 49.5 oz. Box. First Ingredient Whole Grain 12g whole grain per serving At least 48g recommended daily A whole grain food is made by using all three parts of the grain. All General Mills Big G cereals contain more whole grain than any other single ingredient.We believe in the goodness of whole grain cereal. Cereal is packed with nutrients and contains complete grains, which can help fuel your morning.