Gut Bacteria (IMAGE) Brown University Caption Rod-shaped bacteria commonly found in the gut. A new study sheds light on how diet influence the way antibiotics affect gut bacteria populations. Credit Belenky Lab / Brown University 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.