Improving taste sensitivity in healthy adults using taste recall training: a randomized controlled trial

Area of Science:

• Sensory Science
• Neuroscience
• Ophthalmology

Background:

• Taste disorders affect many patients, yet effective treatments to enhance taste sensitivity are scarce.
• Developing methods to improve taste perception is crucial for patient well-being and quality of life.

Purpose of the Study:

• To investigate the efficacy of a taste recall training program designed to enhance taste sensitivity.
• To determine if taste recall training can lower taste recognition thresholds in healthy individuals.

Main Methods:

• Forty-two healthy participants were randomized into a training group or a control group.
• The training group underwent a taste recall protocol involving matching tastes at varying concentrations relative to their recognition thresholds.
• The filter paper disc method was employed to assess taste perception for sweetness, saltiness, sourness, and bitterness.

Main Results:

• The taste recall training program significantly lowered taste recognition thresholds across all four basic taste qualities in the training group.
• Improvements in taste sensitivity, indicated by lower thresholds, were observed with each successive training session.
• No significant changes were noted in the control group, highlighting the specific effect of the training intervention.

Conclusions:

• Taste recall training effectively enhances taste sensitivity in healthy adults by improving taste perception.
• This training method demonstrates potential as a viable therapeutic strategy for managing taste disorders.
• Further research is warranted to explore the long-term effects and clinical applications of taste recall training.