# Competitive food availability in schools before and after the onset of COVID-19: an interrupted time series analysis

## TL;DR

This study found that the availability of less nutritious competitive foods in schools dropped significantly after the start of the COVID-19 pandemic.

## Contribution

The study provides new evidence on how pandemic-related nutrition policies impacted competitive food availability in schools.

## Key findings

- In 2021, competitive food availability was 31.5 percentage points lower than expected if pre-COVID trends continued.
- The drop in competitive foods is likely due to pandemic-related policies like Universal Free Meals.
- Reducing competitive foods could help improve school food environments.

## Abstract

School meal programs often offer competitive foods (CF), sold during lunch outside school meals and/or in vending machines. Although required to meet nutrition guidelines, CF are often less nutritious than school meals, and their presence is associated with lower meal participation. This study examines the prevalence of CF in public schools before and after COVID-19.

Surveys examining the school food environment were conducted in public schools in 4 New Jersey cities, from school year (SY) 2014–15 to SY 2023–24. Prevalence of CF was assessed using an interrupted time series analysis, comparing pre- and post-COVID-19 years.

In 2021, CF availability was 31.5 percentage points lower than the expected level if the pre-COVID trend had continued (p < 0.001).

Findings suggest that COVID-related school nutrition policy changes, including Universal Fee Meals and increased reimbursements, likely reduced CF availability. Identifying strategies to limit CF could contribute to healthier school food environments.