Gut-Brain Peptide Axis
2 articles in this topic.
Gut-Brain Peptide Axis
Why Peripheral Peptide Signals Matter for Weight
Your gut releases over a dozen peptide hormones after every meal. GLP-1, PYY, CCK, and ghrelin reach the brain via the vagus nerve to control appetite.
14 min read|Mar 26, 2026
Gut-Brain Peptide Axis
Brain vs Gut: How Peptides Coordinate Your Appetite
Your appetite is controlled by peptides from two systems: gut hormones like GLP-1 and ghrelin, and brain neuropeptides like NPY. Here is how they interact.
13 min read|Mar 21, 2026