<prompt> True about High roughage in the diet isDecreases stool transit timeIncrease stool transit timeNormalise stool transitNo effect on stool transit time  <response>: Soluble and insoluble fibers are included in the diet. They reduce the intestinal transit time and increase the bulk of stool. They are seen to be beneficial in DM, colon cancer, diverticulitis, constipation, haemorrhoids, IBS etc. 