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Hemodialysis increases the preference for salt in soup
Physiology & Behavior
|January 1, 1997
Summary
Hemodialysis patients showed increased salt preference after treatment. Older adults did not exhibit this change, but hypertensive patients had altered salt taste perception, suggesting a delayed salt craving response to sodium reduction.
Area of Science:
- Nephrology
- Human Physiology
- Sensory Science
Background:
- Hemodialysis involves significant fluid and electrolyte shifts.
- Sodium balance is crucial for physiological function and taste perception.
- Altered taste and preference are reported in various clinical conditions.
Purpose of the Study:
- To investigate the effect of hemodialysis on salt preference.
- To examine age-related differences in post-dialysis salt preference.
- To assess taste perception and salt preference in hypertensive hemodialysis patients.
Main Methods:
- 18 hemodialysis patients rated salt concentrations in soup before and 24 hours after dialysis.
- Participants included individuals of different age groups and hypertensive status.
- Taste intensity and discrimination were evaluated.
Main Results:
- Salt preference ratings significantly increased 24 hours post-dialysis.
- Patients over 65 years old did not show increased salt preference.
- Hypertensive patients exhibited altered salt taste intensity perception and discrimination.
Conclusions:
- Hemodialysis may induce a delayed increase in salt preference.
- Age influences the post-dialysis salt preference response.
- Sodium reduction during hemodialysis could impact salt taste perception and preference, particularly in hypertensive individuals.