Rice Krispies are Fruity Pebbles are not the same cereal, and are made by two different companies. Rice Krispies is made by Kellogg's and is a plain crispy rice cereal. Fruity Pebbles is made by Post and is a somewhat flat, fruity-flavored rice cereal. Rice Krispies contain barley malt extract, meaning they contain gluten, while Fruity Pebbles are gluten-free.