This is an open-label study involving patients who are status post ileal pouch-anal anastomosis age 18 and 75 who receive care at Boston Medical Center's Center for Digestive Disorders (CDD). There is no randomization or use of placebo in this study and patients will be recruited sequentially. This is an open-label, single center study evaluating the effectiveness of SBI or EnteraGam (10.0 g twice per day) on nutritional status and quality of life in patients with ileal pouch-anal anastomosis.