The Effects of a Postbiotic Supplement on Biomarkers of Gut Health

This study is a randomized, double-blind, two-arm, placebo-controlled trial of N=80 (40/arm) apparently healthy men and women between 18 and 65 years old to be recruited at a single investigational center in Northeast Ohio (i.e., The Center for Applied Health Sciences). This study will assess the effectiveness of a postbiotic supplement on various biomarkers of health. Consumption of this dietary supplement is not intended to diagnose, treat, cure, or prevent any disease. Participants will attend three in-person study visits. During Visit 1, participants will be screened for participation (i.e., medical history, routine blood work, background baseline diet). Over the next 4 weeks, participants will attend two in-person visits: \[visit 2 (week 0) and visit 3 (week 4)\] wherein assessments of gut function \[fecal microbiome diversity, short chain fatty acids (SCFA), and fecal butyrate\], serum butyrate, serum zonulin, salivary cortisol, and Gastrointestinal Symptom Rating Scale (GSRS) for gastrointestinal (GI) health, emotional states \[Depression, Anxiety and Stress Scale (DASS21)\], and quality of life (SF-36 questionnaire) will be assessed. Participants will also be provided home kits with instructions on how to collect stool and saliva samples on two separate occasions (i.e., visit 2, visit 3) during the study. • Comprehensive side effect profile/ adverse event monitoring will take place throughout the study duration. The study will be conducted following ICH-GCP guideli…

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