The Peptide Observer

Peptide research, explained for people who are not scientists.

Quick answer

What is Ghrelin?

Built from index records dated 2026-10-09 to 2026-10-13 Compiled by an automated pipeline, checked by The Peptide Observer editorial desk. No qualified clinical reviewer. How this site works

Ghrelin is a peptide, grouped on this site under Growth hormone secretagogues, and the 12 research records kept here are 6 from studies in rats or mice, 2 from trials in people and 4 that do not state what kind of study it is.

The literature search returned 13,906 records. This site keeps 12 of them, which is 0.09 per cent of what came back.

What it is

This site puts it in the Growth hormone secretagogues group.

The endogenous acylated peptide ligand of the growth hormone secretagogue receptor; the retrieved records report growth hormone release and central regulation of feeding.[1, 2]

Stated in the titles of the cited 1999 Nature and 2001 Nature papers.

What kind of records

A small number of the records kept here are trials in people.

That sentence is produced by counting, not by reading. What was counted: 2 interventional human trial records among 12 indexed records.

What this does not settle

Where this comes from

The records cited above, in full.

  1. Ghrelin is a growth-hormone-releasing acylated peptide from stomach. Nature (1999). pmid:10604470
  2. A role for ghrelin in the central regulation of feeding. Nature (2001). pmid:11196643