American Gut Infograph (IMAGE) University of California - San Diego Caption American Gut Project, based at UC San Diego School of Medicine, is the world's largest crowdsourced, citizen science project. Credit UC San Diego Health Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.