Groups consuming no fiber or reduced fiber had 0% incidence of bloating and straining to pass stools, compared to 100% in the high fiber group in one study.

“bloating were present in 0% so 0% in the no fiber group 31.3 in the reduced fiber and 100% in the high fiber crew straining to pass stools occurred in 0% of the no fiber group 43.8 in the reduced fiber and a hundred percent of the high fiber groups”