Why do some older people eat less even when they're hungry?
Appetite, food intake, and plasma concentrations of cholecystokinin, ghrelin, and other gastrointestinal hormones in undernourished older women and well-nourished young and older women.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
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Evidence Score
A snapshot of a population at a single point in time. Can identify correlations and prevalence, but cannot determine the direction of cause and effect.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 542 / 44
Evidence Score
A snapshot of a population at a single point in time. Can identify correlations and prevalence, but cannot determine the direction of cause and effect.
Publication
Journal
The Journal of clinical endocrinology and metabolism
Year
2003
Authors
Kerstin Sturm, C. MacIntosh, B. Parker, J. Wishart, M. Horowitz, I. Chapman
Related Content
Claims (6)
When people eat a small snack before lunch, most people eat less at lunch—but undernourished older adults don’t cut back, even when they’ve already eaten something.
Even though hunger and fullness hormones are different in older women, those differences don’t match up with who eats less—so the problem probably isn’t the hormones themselves.
Older women who aren't eating enough feel less hungry than younger women, even though their bodies are making more of the hunger hormone, which might explain why they eat less as they age.
Even though undernourished older women have more of the hunger hormone in their blood, they still don’t eat more—so high hunger signals don’t always make people eat.
Masticatory activity triggers the release of cholecystokinin and suppresses ghrelin, reducing subjective hunger independent of nutrient intake.