A just-in-time adaptive mobile application intervention to reduce sodium intake and blood pressure in patients with hypertension: Rationale and design of the LowSalt4Life 2 trial

LowSalt4Life 2 tests a scalable, context-aware digital intervention designed to reduce dietary sodium and improve BP management. By personalizing engagement based on user behavior, this study seeks to advance mHealth strategies for HTN self-management and inform future interventions targeting dietary behaviors in real-world settings.