Findings could lead to more nutrient-rich foods and beverages.

Index for Cereal and Bakery Products jumps 11.6% from a year ago.

A majority say they are trying to consume fiber.

Sodium, potassium and whole grains join fiber and sugar.

The ingredient provides texture benefits in various applications.

Adding fiber to everyday foods could decrease risk of heart disease, diabetes. 

Researchers point to gut benefits as possible reason for the results.