The Claim
Circulating ghrelin levels are consistently lower in individuals with obesity and type 2 diabetes compared to lean, metabolically healthy individuals, and liver-expressed antimicrobial peptide 2 (LEAP2) concentrations are elevated in these individuals, resulting in a reduced ghrelin/LEAP2 ratio that is associated with impaired appetite regulation and metabolic dysfunction.
What the research says
Roughly balanced
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These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
People with obesity and type 2 diabetes have lower levels of ghrelin and higher levels of LEAP2 in their blood than lean, metabolically healthy people, and this difference in hormone levels is linked to altered appetite control and metabolic problems.
See the scientific wording
Circulating ghrelin levels are consistently lower in individuals with obesity and type 2 diabetes compared to lean, metabolically healthy individuals, while liver-expressed antimicrobial peptide 2 (LEAP2) concentrations are elevated, suggesting a reduced ghrelin/LEAP2 ratio may contribute to impaired appetite regulation and metabolic dysfunction in these conditions.
In obesity and type 2 diabetes, the hunger signal ghrelin drops and the satiety signal LEAP2 rises, which shuts down the brain's hunger circuit and slows down energy burning. This causes people to feel less hungry, eat less, but also store more fat and have higher blood sugar because the liver makes more glucose and the body burns less energy.
What the research says
1 studyStudy: The Ghrelin-LEAP2 System in Obesity and Diabetes: Pathophysiological Roles and Therapeutic Potential
People with obesity and type 2 diabetes have less of the hunger hormone ghrelin and more of a hormone called LEAP2 that blocks hunger signals, making it harder for their bodies to tell when they need to eat. The study confirms this pattern and says it’s a key reason their appetite and metabolism get out of balance.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.