Question: what is the lowest calorie breakfast cereal?
Answer: Post Shredded Wheat. Calories: 210 per cup. ... 
General Mills Original Cheerios. ... 
Kashi GO Crisp! ... 
Kellog's Rice Krispies. ... 
Fiber One Original Bran. ... 
Nature's Path Flax Plus Multibran Flakes (Organic) ... 
Barbara's Bakery Peanut Butter Puffins Cereal. ... 
Post Grape-Nuts.