... eating, sugary kids' cereals contain approximately 118 calories, 0.6 g of fat, 141 mg sodium, 0.6 g ... sugar. Oat-based O's contains approximately 100 calories, 2 g fat, 190 mg sodium, 3 g of fiber and ... serving. Diet cereal flakes contain approximately 120 calories, 0.5 g of fat, 220 mg sodium, 6 g protein and ... cereal contains less fat than the O's or the kids' cereal, it's higher in calories than both ...