Menu Changes Under NYC's Revised Food Standards Were Associated With A Reduction In Greenhouse Gas Emissions.

Area of Science:

• Public Health
• Environmental Science
• Food Policy

Background:

• Municipalities are implementing nutrition standards for public health and climate goals.
• The impact of these policies on food offerings and environmental outcomes is not well understood.
• New York City (NYC) established nutrition standards in 2008 and revised them in 2022 to favor plant-based options.

Purpose of the Study:

• To evaluate the impact of NYC's revised nutrition standards on food offerings.
• To assess changes in greenhouse gas emissions and nutritional content of municipal meals.
• To determine if updated food standards can reduce environmental impact without compromising nutrition.

Main Methods:

• Analysis of menu data from four NYC agencies (FY2019-FY2024).
• Examination of entrée frequency, focusing on meat and plant-based options.
• Calculation of greenhouse gas emissions (kg CO2e per portion) and nutritional content.

Main Results:

• Agencies reduced beef entrée offerings and increased vegetarian options.
• Menu changes were associated with an estimated 0.64 kg CO2e reduction per portion.
• Nutritional content of menus remained generally consistent despite changes in offerings.

Conclusions:

• Municipal nutrition standards can effectively reduce greenhouse gas emissions from food services.
• These policies can support environmental health goals without negatively impacting meal nutrition.
• NYC's experience provides a model for other cities aiming to integrate public health and climate action.