The CNP Microbiota-Gut-Brain Axis (MGBA) & Mental Health Research Category consolidates research exploring the interconnected relationship between dietary intake, the microbiome, and the gut-brain axis in the adult population. To view each original study on the open internet, click “Original.” To view the CNP-written abstract summary, click “CNP Summary.” While only some of the CNP-written abstract summaries are available below for free, all abstract summaries are available to CNP members through the CNP Library Membership.