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Effectiveness of a Sodium Intake Monitoring Smartphone Application (NamakBan) on Clinical Outcomes of Patients Diagnosed With Hypertension: A Randomized Clinical Trial
By Taatizadeh M, Sanaie N, Saadat H and 4 others.
Abstract
Aim
To evaluate the effectiveness of NamakBan, a smartphone application for monitoring sodium intake, on blood pressure, dietary sodium consumption, urinary sodium-to-potassium ratio and hospitalization in adults with primary hypertension.
Design
We conducted a parallel randomized clinical trial at the specialized hypertension clinic of Shahid Modarres Hospital in Tehran, Iran.
Methods
Between April 1, 2024, and September 20, 2025, 88 patients with physician-diagnosed primary hypertension were randomized (1:1) to receive standard clinic care (control, n = 44) or standard care plus the NamakBan app (intervention, n = 44). The app (Android) allowed repeated self-reporting of blood pressure and salt intake, medication logging, and PDF output for monitoring. Outcomes were assessed at baseline, 1 month and 2 months. Primary outcomes were systolic and diastolic blood pressure; secondary outcomes were self-reported dietary sodium intake, urinary Na+/K+ ratio and readmissions.