This prospective, non-randomized, open-label study assessed the effect of a nutrition support product on quality of life in adults with compromised gut function and malabsorption. Adults with irritable bowel syndrome (IBS), inflammatory bowel disease (IBD) or celiac disease were enrolled in the study and asked to take the study product for 6 weeks. The primary measure of the study was a validated quality of life questionnaire, the Gastrointestinal Quality of Life Index (GIQLI). Secondary measures included the Inflammatory Bowel Disease Questionnaire (IBDQ), the Celiac Disease Questionnaire (CDQ), and the Digestive Symptom Frequency Questionnaire (DSFQ).