The specific aims of this analysis were to: (a) compare ratings of the severity (determined from frequency and amount) of GI symptoms that occurred during baseline and steady dose segments and in the three dietary fiber and placebo groups over time; (b) describe the types and severity of GI symptoms during the segment when fiber administration was gradually increased; (c) determine the relationship between symptom severity and emotional upset; (d) determine the influence of symptom severity and emotional upset on time to study withdrawal and reduction of supplement dose; and (e) compare symptom severity and emotional upset of subjects who withdrew from the study during supplementation and those who completed the study.