When people have more of the fullness hormones (CCK and insulin) after eating, they feel less hungry — this is true whether they’re young or old.
Scientific Claim
In both young and older adults, higher levels of cholecystokinin and insulin after eating are strongly associated with lower hunger ratings, suggesting these hormones play a key role in signaling fullness.
Original Statement
“Strong negative correlations were shown between CCK and hunger (group A: r(s) = -0.88, P = 0.009; group B: r(s) = -0.86, P = 0.014; group C: r(s) = -0.71, P = 0.071) and insulin and hunger (group A: r(s) = -0.901, P = 0.006; group B: r(s) = -0.964, P < 0.001; group C: r(s) = -0.929, P = 0.003).”
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design cannot support claim
Appropriate Language Strength
association
Can only show association/correlation
Assessment Explanation
The abstract uses correlation coefficients and p-values to describe relationships. The claim correctly uses 'associated' and reflects the observational nature of the data.
Evidence from Studies
Supporting (1)
Effect of age and frailty on ghrelin and cholecystokinin responses to a meal test.
After eating, people who had more of two hormones—CCK and insulin—felt less hungry, no matter if they were young or old. The study found a strong link between these hormone levels and lower hunger, supporting the idea that they help tell your brain you're full.