Fruity Pebbles cereal is a sweetened crispy rice cereal with intense fruity flavor. Fruity Pebbles gluten free breakfast, with its delicious taste has been a family favorite for over 40 years! Post Consumer Brands make more of the top 50 cereal brands than any other company. The best cereal for kids and grown-ups alike. There's a lot of tradition here, but also so much delicious invention.