Cited by 247Nutrition and Health in AgingBody Composition Measurement TechniquesFrailty in Older Adults

Deciphering the “obesity paradox” in the elderly: A systematic review and meta‐analysis of sarcopenic obesity

Liu, Chaoran, Wong, Pui Yan, Chung, Yik Lok, Chow, Simon Kwoon‐Ho, Cheung, Wing Hoi, Law, Sheung Wai, Chan, Juliana Chung Ngor, Wong, Ronald Man Yeung·2023·Obesity Reviews

Abstract

Summary: Aging and obesity are two global concerns in public health. Sarcopenic obesity (SO), defined as the combination of age‐related sarcopenia and obesity, has become a pressing issue. This systematic review and meta‐analysis summarize the current clinical evidence relevant to SO. PubMed, Embase, and Web of Science were searched, and 106 clinical studies with 167,151 elderlies were included. The estimated prevalence of SO was 9% in both men and women. Obesity was associated with 34% reduced risk of sarcopenia (odds ratio [OR] 0.66, 95% CI 0.48–0.91; p < 0.001). The pooled hazard ratio (HR) of all‐cause mortality was 1.51 (95% CI 1.14–2.02; p < 0.001) for people with SO compared with healthy individuals. SO was associated with increased risk of cardiovascular disease and related mortality, metabolic disorders, cognitive impairment, arthritis, functional limitation, and lung diseases (all ORs > 1.0, p < 0.05). The attenuated risk of sarcopenia in elderlies with obesity (“obesity paradox”) was dependent on higher muscle mass and strength. Apart from unifying the diagnosis of SO, more research is needed to subphenotype people with obesity and sarcopenia for individualized treatment. Meanwhile, the maintenance of proper body composition of muscle and fat may delay or attenuate the adverse outcomes of aging.

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Crossref · 10.1111/obr.13534

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131 of 131 references verified0 citation errors · 0 not checkable

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  • Among adults, BMI has been used to assess overweight status independent of age or sex, though its cut-offs for the elderly are debated.

    “Among adults, BMI has been used to assess overweight status independent of age or sex [28], though its cut-offs for the elderly are debated [30].”
  • Persons with more body fat at a lower BMI than considered obese by WHO cut-offs, termed sarcopenic obesity, are at higher risk of type 2 diabetes with relative excess adiposity.

    “Consequently, persons with more body fat at a lower BMI than considered obese by WHO cut-offs, termed “sarcopenic obesity” [30], are at higher risk of type 2 diabetes with a relative excess adiposity, but would not be successfully identified if screened by WHO BMI criteria.”

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Authors
Liu, C., Wong, P. Y., Chung, Y. L., Chow, S. K., Cheung, W. H., Law, S. W., Chan, J. C. N., & Wong, R. M. Y.
Affiliations
Chinese University of Hong Kong (HK)
Corresponding author
Wong, Ronald Man Yeung
Venue
Obesity Reviews
Publisher
Wiley
Published
2022-11-28
Volume
24
Issue
2
Pages
e13534-e13534
ISSN
  • 1467-7881 (ISSN-L)
  • 1467-789X
OpenAlex
W4310209091
Cited by
247
References
133
Citations by year
2026: 61 · 2025: 92 · 2024: 70 · 2023: 24
FWCI
6.40
Type
journal article
Language
en
Open access
closed
Locations
  • Obesity Reviews (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
  • Health Sciences › Medicine › Physiology › Body Composition Measurement Techniques
  • Health Sciences › Medicine › Geriatrics and Gerontology › Frailty in Older Adults
Keywords
sarcopenic obesity, obesity paradox, sarcopenia, aging, older adults, all-cause mortality, cardiovascular disease, cognitive impairment, functional limitations, muscle mass, muscle strength, body composition, prevalence
MeSH terms
Aged, Aging, Body Composition, Cardiovascular Diseases, Female, Humans, Male, Obesity, Sarcopenia

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