3. Fiber One By Kacey Culliney 05-Aug-2015 - Last updated on 06-Aug-2015 at 16:53 GMT Facebook Twitter Linkedin Email to a friend General Mills’ Fiber One bars generated $282,693,152 in dollar sales for the period. Unit sales, however, were down 6.41% on the previous year. Crunch-down: America’s top 10 best-selling snack bars 10. KIND Plus 9. Nature Valley Protein 8. Special K Protein 7. Nutri Grain 6. Quaker Chewy 5. Rice Krispies Treats 4. Nature Valley Sweet and Salty 3. Fiber One 2. CLIF 1. Nature Valley Granola Prev 1 … 7 8 9 10 11 Next