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Related Experiment Video

Updated: Jun 29, 2025

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Does presbygeusia really exist? An updated narrative review.

Valentina Ponzo1, Mario Bo1,2, Enrica Favaro1

  • 1Department of Medical Sciences, University of Turin, Corso A. M. Dogliotti, 14, Turin, 10126, Italy.

Aging Clinical and Experimental Research
|April 1, 2024
PubMed
Summary
This summary is machine-generated.

Presbygeusia, or age-related taste impairment, is common in older adults. While it exists independently of disease, its influence on dietary choices is modest compared to other factors.

Keywords:
AgingFood choicesFood preferencesPresbygeusiaTaste alterationsTaste buds

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Area of Science:

  • Gerontology
  • Sensory Science
  • Nutritional Science

Background:

  • Age-related taste alterations (TAs) are multifactorial.
  • Potential causes include structural changes in taste buds, saliva, CNS, and oral microbiota.

Purpose of the Study:

  • To critically assess the existence of presbygeusia as a natural aging process.
  • To evaluate the clinical implications of age-related taste changes.

Main Methods:

  • A comprehensive literature review was performed.
  • Studies were included to differentiate age effects from disease-related TAs.

Main Results:

  • Presbygeusia is frequent in healthy elderly individuals, suggesting age-related changes.
  • Other factors like cultural, psychological, and social influences impact dietary preferences more than TAs.

Conclusions:

  • Presbygeusia is a real phenomenon, occurring even without comorbidities or medication side effects.
  • The impact of presbygeusia on elderly dietary choices is likely minimal.