ArticleThe journal of nutrition, health & aging2025
Impact of energy intake on the association between protein intake and the prevalence of frailty in older Korean adults: The Korea National Health and Nutrition Examination Survey, 2014-2018.
Article in The journal of nutrition, health & aging, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.
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Who cites it
3 citing papers in PubMed, 1 synthesis or guideline pooled it.
- The association of ultra-processed food intake on age-related muscle conditions: a systematic review and dose-response meta-analysis with meta-regression.Journal of health, population, and nutrition · 2025Pooled it
- Association of dietary energy and protein intake with frailty among patients with cirrhosis and implications for nursing practice.International journal of nursing sciences · 2026Article
- Development of a prediction model for identifying older adults with low protein using a simple food intake questionnaire.Journal of nutritional science · 2026Article
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Authors and funding
3 authors.
Funding
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Abstract
objectivesFindings regarding dietary protein and frailty are inconsistent. This inconsistency may be attributed to variations in energy intake adequacy. We hypothesized that the prevalence of frailty in older adults with sufficient energy intake is inversely associated with the intake of total, animal, and plant proteins; however, in those with deficient energy intake, this association may not be observed. DESIGN, SETTING, PARTICIPANTS, AND MEASUREMENTS: This cross-sectional study included data of 5,768 adults aged ≥65 years from the Korea National Health and Nutrition Examination Survey 2014-2018. Frailty was assessed using a modified Cardiovascular Health Study frailty index. Protein intake was measured via a 24-h recall and analyzed using multivariable logistic regression.
resultsIn older adults with sufficient energy intake, frailty was inversely associated with the intake of total (odds ratio [OR], 0.67; 95% confidence interval [CI], 0.46-0.97; p = 0.032), animal (OR, 0.59; 95% CI, 0.43-0.82; p = 0.001), and plant proteins (OR, 0.68; 95% CI, 0.50-0.92; p = 0.043). In those with deficient energy intake, total and animal protein intake showed no significant associations with frailty, whereas plant protein intake was inversely associated with frailty.
conclusionAdequate energy intake appears essential for the protective effects of total and animal protein against frailty. Higher plant protein intake appears to confer benefits regardless of energy intake, highlighting its potential role in frailty prevention.
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