Restaurant interventions for salt reduction in China: protocol for a randomised controlled trial

Area of Science:

• Public Health
• Nutrition Science
• Behavioral Science

Background:

• High salt intake in China is a significant public health concern, largely driven by consumer-added salt.
• Increased frequency of dining out presents a novel challenge and opportunity for dietary interventions.
• Understanding consumer behavior and restaurant practices is crucial for effective public health strategies.

Purpose of the Study:

• To evaluate the effectiveness of interventions designed to reduce salt content in restaurant meals.
• To assess the impact of these interventions on consumer choices when dining out.
• To provide evidence-based strategies for salt reduction in the food service sector in China.

Main Methods:

• A randomized controlled trial involving 192 restaurants across 6 provinces in China.
• Intervention group restaurants received comprehensive salt reduction strategies based on social cognitive theory.
• Primary outcome measured by laboratory analysis of salt content in top-selling dishes; secondary outcomes include salt usage and consumer knowledge/attitudes.

Main Results:

• The study is registered as pre-results, indicating ongoing data collection and analysis.
• Specific findings on the effectiveness of salt reduction interventions are pending.
• The trial design allows for robust evaluation of dietary changes in a real-world setting.

Conclusions:

• Restaurant-based interventions hold potential for reducing population salt intake in China.
• Further research is needed to confirm the efficacy and scalability of these strategies.
• Findings will inform public health policy and interventions targeting dietary habits in China.