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Title: Effectiveness of nutritional advice for community-dwelling obese older adults with frailty : a systematic review and meta-analysis
Authors: Yin, YH 
Liu, JYW 
Fan, TM 
Leung, KM 
Ng, MW 
Tsang, TY 
Wong, KP 
Välimäki, M
Issue Date: Jun-2021
Source: Frontiers in nutrition, June 2021, v. 8, 619903
Abstract: Objectives: This systematic review was aimed to examine the effectiveness of nutritional advise interventions compared with usual care, or exercise, or exercise combined with nutritional advice as a means of improving the body weight, body composition, physical function, and psychosocial well-being of frail, obese older adults.
Methods: CINAHL, Cochrane Library, Embase, MEDLINE, PsycINFO, and Scopus databases were searched to identify relevant studies. The quality of the included studies was assessed using Cochrane's risk of bias tool 2. Meta-analysis was performed with respect to body weight and fat mass. Other outcomes were synthesized narratively.
Results: Eight articles (from two studies) with a total of 137 participants were included in the review. The results revealed that nutritional advice was more effective than exercise in reducing body weight and fat mass. The nutritional advice was also beneficial in enhancing physical function and psychosocial well-being. However, it was less effective than exercise or combined interventions in increasing muscle strength and preventing lean mass loss.
Conclusions: Nutritional advice is an essential intervention for reducing body weight and fat mass, for enhancing physical function, and for improving the psychosocial well-being of obese older adults experiencing frailty. The limited number of studies included in this review suggests that there is a need for more well-designed interventional studies in order to confirm these findings.
Keywords: Body weight
Nutritional advice
Physical function
Publisher: Frontiers Research Foundation
Journal: Frontiers in nutrition 
EISSN: 2296-861X
DOI: 10.3389/fnut.2021.619903
Rights: © 2021 Yin, Liu, Fan, Leung, Ng, Tsang, Wong and Välimäki. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY) ( The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
The following publication Yin Y-H, Liu JYW, Fan TM, Leung KM, Ng MW, Tsang TY, Wong KP and Välimäki M (2021) Effectiveness of Nutritional Advice for Community-Dwelling Obese Older Adults With Frailty: A Systematic Review and Meta-Analysis. Front. Nutr. 8:619903 is available at
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