A serving of regular Cheerios (containing just 3 grams of protein) is 1 cup — 28 grams. The listed serving of Cheerios Protein (an amount of cereal containing 7 grams of protein) is 1 1/4 cups — weighing a whopping 55 grams — almost twice the weight of the serving of regular Cheerios! If you ate the same 55 grams of regular Cheerios (almost 2 cups), you’d get almost 6 grams of protein.
Why is a serving of Cheerios 1 cup (28 grams), while a serving of a light cereal such as Puffed Rice is 1 cup (14 grams), a serving of Cheerios Protein (pretty dense, because of the granola clusters) is 1 1/4 cup (55 grams), and a serving of Grape Nuts, a really dense cereal, is 1/2 cup (58 grams)? Why isn’t the serving size 1 cup for all of them, or maybe 30 grams for all of them?