RethinkPeptides

Ghrelin Biology

Explore peptide research and guides on ghrelin biology.

Ghrelin Resistance in Obesity

Obesity blunts ghrelin signaling through inflammation, receptor loss, and NPY/AgRP neuron dysfunction. The resistance reverses with weight loss.

Ghrelin Biology

Ghrelin: The Hunger Hormone

Ghrelin is a 28-amino-acid stomach peptide that drives appetite, growth hormone release, and reward-seeking. Here is what research shows about ghrelin.