references
  
      Cheerios: "Original Cheerios"
    
      Smart Label: "Kellogg's Corn Flakes® Cereal"
    
      Advances in Nutrition: "The Benefits of Breakfast Cereal Consumption: A Systematic Review of the Evidence Base"
    
      Smart Label: "General Mills Rice Chex"
    
      Cheerios: "Multigrain Cheerios"
    
      Fiber One: "Fiber One Original Bran"
    
      FDA: "Dietary Fiber"
    
      Kellogg's All-Bran: "Kellogg's All-Bran Complete Wheat Flakes Cereal"
    
      World Journal of Gastroenterology: "Stopping or Reducing Dietary Fiber Intake Reduces Constipation and its Associated Symptoms"
    
      BMC Public Health: "Depicted Serving Size: Cereal Packaging Pictures Exaggerate Serving Sizes and Promote Overserving"
    




Kellogg's Corn Flakes is the lowest calorie cereal per cup.

Image Credit: seksan Mongkhonkhamsao/Moment/GettyImages

Image Credit: seksan Mongkhonkhamsao/Moment/GettyImages

      Cheerios: "Original Cheerios"
    
      Smart Label: "Kellogg's Corn Flakes® Cereal"
    
      Advances in Nutrition: "The Benefits of Breakfast Cereal Consumption: A Systematic Review of the Evidence Base"
    
      Smart Label: "General Mills Rice Chex"
    
      Cheerios: "Multigrain Cheerios"
    
      Fiber One: "Fiber One Original Bran"
    
      FDA: "Dietary Fiber"
    
      Kellogg's All-Bran: "Kellogg's All-Bran Complete Wheat Flakes Cereal"
    
      World Journal of Gastroenterology: "Stopping or Reducing Dietary Fiber Intake Reduces Constipation and its Associated Symptoms"
    
      BMC Public Health: "Depicted Serving Size: Cereal Packaging Pictures Exaggerate Serving Sizes and Promote Overserving"