25 Worst Cereals to Stay Away From Right Now — Eat This Not That Kroger. per 3/4 cup serving: 120 calories, 3.5 g fat (1 g saturated fat), 105 mg sodium, 24 g carbs (3 g fiber, 10 g sugar), 2 g protein. These chocolate- and marshmallow-filled nuggets dish up 3 grams of filling fiber. Beyond that, the s'mores-inspired cereal is sugary, processed and void of nutrients.