Sodium menu labelling: priorities for research and policy

Area of Science:

• Public Health Policy
• Nutritional Science
• Food Service Regulation

Background:

• High sodium intake is a significant public health concern, contributing to hypertension and cardiovascular disease.
• Menu labeling policies aim to inform consumers and encourage healthier food choices in restaurants.
• Previous research on the impact of sodium menu labeling has yielded inconsistent findings.

Purpose of the Study:

• To review sodium (Na) menu labeling policies considered by US policymakers.
• To summarize evidence on the relationship between Na menu labeling and the sodium content of restaurant menu items and consumer purchases.

Main Methods:

• A review of proposed and enacted Na menu labeling laws in US state and local jurisdictions.
• A narrative review of peer-reviewed literature examining the impact of Na menu labeling on food sodium content.

Main Results:

• Between 2000-2020, 38 Na menu labeling laws were proposed; 8 were enacted by 2020, requiring chain restaurants to label sodium content.
• Five studies evaluated the impact of Na menu labeling, with mixed results: two showed a significant association with reduced sodium, while three found no effect.
• The studies focused on the US, examining either the sodium content of offered menu items or consumer purchases.

Conclusions:

• Evidence suggests that sodium (Na) menu labeling may lead to reduced sodium content in restaurant menu items.
• Further rigorous research is necessary to confirm the effects of Na menu labeling on both offered menu items and actual consumer purchases.
• The findings highlight the need for continued evaluation of public health interventions in the food service industry.