Barriers for progress in salt reduction in the general population. An international study

Area of Science:

• Public Health
• Nutrition Science
• Cardiovascular Disease Prevention

Background:

• High salt intake is a global issue, exceeding recommendations and contributing to hypertension and cardiovascular events.
• Effective salt reduction strategies require a deep understanding of population-level salt intake behaviors.
• Limited international data exists on salt consumption patterns and related behaviors in the general population.

Purpose of the Study:

• To investigate salt intake levels and associated behaviors in a diverse international population.
• To identify barriers and facilitators for salt reduction among adults.
• To inform the development of targeted global and local salt reduction strategies.

Main Methods:

• An international online cohort study recruited 6987 participants (aged 18-65) from Germany, Austria, USA, Hungary, India, China, South Africa, and Brazil.
• Participants completed a comprehensive web-based questionnaire assessing salt intake, awareness, and related behaviors.
• Data was age and gender stratified to ensure a representative sample.

Main Results:

• Over one-third of participants were not interested in reducing salt intake, and most were unaware of official recommendations.
• Participants largely underestimated their salt intake and lacked knowledge of major dietary salt sources.
• While individuals felt primarily responsible for their intake, they also recognized external influences and desired more information on health impacts and sources.

Conclusions:

• Salt reduction strategies must prioritize increasing awareness of intake levels and dietary sources to foster engagement.
• Global approaches to salt reduction need local tailoring to align with varying levels of interest and understanding.
• Findings offer critical insights for designing effective public health policies and interventions for salt reduction.