Swiss and Quaker suggest 1/2 cup at 220 and 200 calories respectively. That's packing a lot of calories into 1/2 cup. Add a cup of yogurt and that's another 190 calories. 400 calories.
Kelloggs and General Mills serve 1 1/4 cup at 130 calories and 1 cup at 110 respectively. twice as much cereal at half the calories. 1 cup of 2% milk increases calorie count by 130.
Even betterI can make myself 1/2 cup of Quaker Oats, 1/2 cup fresh blueberries, 1 tablespoons of maple syrup and a few shakes of cinnamon for a real breakfast of champions, at about 250 healthy fiber and vitamin packed calories.