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Appetite, hunger, and satiety in the elderly
1Program in Biobehavioral Health, Pennsylvania State University, University Park 16802.
Critical Reviews in Food Science and Nutrition
|January 1, 1993
Summary
Older adults experience reduced appetite and sensory-specific satiety, leading to monotonous diets. Further research into aging
Area of Science:
- Gerontology
- Nutritional Science
- Appetite Regulation
Background:
- Food intake and appetite decrease with age in the elderly.
- Factors contributing to reduced food intake include social, physical, and energy expenditure changes.
- Existing research suggests hunger mechanisms may also be affected by aging, necessitating further investigation.
Purpose of the Study:
- To investigate the impact of aging on sensory-specific satiety.
- To explore the relationship between age-related changes in satiety and dietary variety in the elderly.
- To identify potential mechanisms underlying decreased food intake in older adults.
Main Methods:
- The study assessed sensory-specific satiety in individuals across different age groups.
- Comparative analysis of food intake patterns and dietary variety was conducted.
- Exploration of age-related alterations in appetite regulation mechanisms.
Main Results:
- Sensory-specific satiety was found to be absent in individuals over 65 years of age.
- This age-related deficit in sensory-specific satiety may explain the consumption of more monotonous diets by the elderly.
- Changes in hunger and satiety mechanisms are implicated in age-related decreases in food intake.
Conclusions:
- Aging significantly alters sensory-specific satiety, impacting dietary choices in older adults.
- Understanding these age-related changes is crucial for addressing nutritional status in the elderly.
- Further basic research on aging's effects on food intake control is recommended to improve elderly nutrition.