Why the study?
Does a reduced urinary sodium/potassium ratio associate with lower systolic blood pressure in salt sensitive and salt resistant individuals?
Population
Salt sensitive (N = 186) and salt resistant (N = 222) participants in the DASH-Sodium Trial
Comparison
Urinary sodium and potassium excretion and sodium/potassium ratio across salt-sensitive vs salt-resistant participants
Design
Post-hoc secondary analysis of DASH-Sodium Trial data
Authors
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Supports withholding a potassium DRI; leaves open whether Na+/K+ ratio reduction lowers SBP.
Does a reduced urinary sodium/potassium ratio associate with lower systolic blood pressure in salt sensitive and salt resistant individuals?
The study supports the DRI recommendation not to establish a potassium DRI, as increased urinary potassium or a reduced sodium/potassium ratio did not correlate with lower systolic blood pressure following the DASH diet.
Chaudhary et al. (2020) studied this question.
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