Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/80735
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Type: Journal article
Title: Body weight, anorexia, and undernutrition in older people
Author: Soenen, S.
Chapman, I.
Citation: Journal of the American Medical Directors Association (JAMDA): long-term care: management, applied research and clinical issues, 2013; 14(9):642-648
Publisher: Elsevier
Issue Date: 2013
ISSN: 1525-8610
1538-9375
Statement of
Responsibility: 
Stijn Soenen, Ian M. Chapman
Abstract: Ideal body weight for maximum life expectancy increases with advancing age. Older people, however, tend to weigh less than younger adults, and old age is also associated with a tendency to lose weight. Weight loss in older people is associated with adverse outcomes, particularly if unintentional, and initial body weight is low. When older people lose weight, more of the tissue lost is lean tissue (mainly skeletal muscle) than in younger people. When excessive, the loss of lean muscle tissue results in sarcopenia, which is associated with poor health outcomes. Unintentional weight loss in older people may be a result of protein-energy malnutrition, cachexia, the physiological anorexia of aging, or a combination of these. The physiological anorexia of aging is a decrease in appetite and energy intake that occurs even in healthy people and is possibly caused by changes in the digestive tract, gastrointestinal hormone concentrations and activity, neurotransmitters, and cytokines. A greater understanding of this decrease in appetite and energy intake during aging, and the responsible mechanisms, may aid the search for ways to treat undernutrition and weight loss in older people.
Keywords: Anorexia of aging
body weight
appetite
health
Rights: Copyright © 2013 American Medical Directors Association, Inc.
DOI: 10.1016/j.jamda.2013.02.004
Appears in Collections:Aurora harvest
Medicine publications

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