Título:	Changes in taste perception in elderly population and its potential impact on oral health : a systematic review with meta-analysis
Autor(es):	Alves, Larisse Santos Mendonça Munduri, Júlia Maria de Sousa Mattos, Mariana Caldas de Oliveira Stefani, Cristine Miron Teixeira, Naile Dame
Afiliação do autor:	University of Brasilia, School of Health Sciences, Department of Dentistry University of Brasilia, School of Health Sciences, Department of Dentistry University of Brasilia, School of Health Sciences, Department of Dentistry University of Brasilia, School of Health Sciences, Department of Dentistry University of Brasilia, School of Health Sciences, Department of Dentistry
Assunto:	Idosos Saúde bucal Saliva Percepção do paladar
Data de publicação:	5-Dez-2024
Editora:	Frontiers Media SA
Referência:	ALVES, Larisse Santos Mendonça; MUNDURI, Júlia Maria de Sousa; MATTOS, Mariana Caldas de Oliveira; STEFANI, Cristine Miron; DAME-TEIXEIRA, Naile. Changes in taste perception in elderly population and its potential impact on oral health: a systematic review with meta-analysis. Frontiers in Oral Health, [S. l.], v. 5, 1517913, 2024. DOI: https://doi.org/10.3389/froh.2024.1517913. Disponível em: https://www.frontiersin.org/journals/oral-health/articles/10.3389/froh.2024.1517913/full. Acesso em: 8 jun. 2026.
Abstract:	Aim: Gustatory function plays a fundamental role in various aspects related to nutrition and health, and the decline in taste perception can result in a series of adverse consequences. This is expected with aging due to a decrease in taste buds and other conditions, leading to systemic and oral diseases. We aimed to compare taste sensitivity in the elderly population vs. adults.Methods: This systematic review was reported according to PRISMA guidelines. The search was performed in four databases, as well as in grey literature. The risk of bias was assessed using the JBI's critical appraisal tools for observational studies. A meta-analysis with subgroups according to each flavor was conducted to obtain differences in means for adults vs. elderly (random-effects model).Results: Out of the 5,660 studies retrieved, 18 observational studies were included, representing a total of 1,680 aged 18–59 years and 1,048 aged ≥ 60 years. Elderly individuals need higher concentrations to distinguish flavors compared to adults. In a qualitative analysis, all flavors showed differences between the groups, with sweet flavor being the easiest to recognize and the thresholds between the groups not being highly discrepant. However, in the meta-analysis, statistical differences were observed for sweet, salty, and umami flavors, while there were no statistical differences for sour and bitter flavors between the groups. Conclusions: There are significant differences for distinguishing sweet, salty, and umami flavors between adults and elderly. Bitter and sour flavors did not exhibit differences in elderly.
DOI:	https://doi.org/10.3389/froh.2024.1517913
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