Correction to: Nature Reviews Gastroenterology & Hepatology https://doi.org/10.1038/s41575-021-00522-5, published online 23 September 2021.

In the original Supplementary Table associated with this Correspondence, the terms “postbiotic” and “ISAPP” were misspelled in the column heading and footnote, respectively. These errors have now been corrected and the Supplementary information updated online; for transparency, the updated Supplementary Table is available in the online version of this Correction.