In addition, DFs obtained by different methods and from different sources behave differently during their transit through the gastrointestinal tract, depending on their chemical composition and physicochemical characteristics and on the processing that food undergoes (Chau & Huang, 2003).
The recommended daily intake value of DF is 25–35 g for optimal benefits; however, common intake in the United States is less than this level (Dreher, 2001).
Therefore, DFs have received increasing attention from researchers and industry due to their beneficial effects in reducing coronary heart-related diseases, diabetes incidence, and gut neoplasia.