A new research brief developed by the Nutrition Policy Institute highlights promising school-based CalFresh Healthy Living—California's SNAP-Ed program—physical activity interventions. The study used latent class analysis to describe the predominant combinations of CFHL physical activity interventions implemented in California public schools in partnership with local health departments. Using Fitnessgram data from over 440,000 students in nearly 4,300 schools, the researchers assessed whether intervention combinations were associated with student cardiorespiratory fitness, as measured by V0₂ max. The study found that students in schools with CFHL interventions focused on establishing or improving wellness policies and increasing opportunities for physical activity had better cardiorespiratory fitness than students in schools without CFHL interventions or in schools with other types of CFHL intervention combinations. The peer-reviewed study was authored by Sridharshi Hewawitharana, Gail Woodward-Lopez, and Wendi Gosliner from the Nutrition Policy Institute, Punam Ohri-Vachaspati and Francesco Acciai from Arizona State University, and John Pugliese from the California Department of Public Health. The research brief was created by NPI's CalFresh Healthy Living Evaluation Unit, including: Summer Cortez, Reka Vasicsek, Miranda Westfall, and Sridharshi Hewawitharana.

Nutrition Policy Institute researchers led a recent study published in the California Agriculture journal. During COVID-related school closures school meal consumption was associated with eating more fruits and vegetables. Researchers administered online surveys to 3,297 fourth and fifth-grade students in 67 CalFresh Healthy Living–eligible schools and after-school programs in California during the pandemic. Survey results showed that, on average, students who ate one or more school meals daily consumed fruit and vegetables four times per day. This was significantly higher than students who did not eat school meals; they consumed fruits only two times and vegetables three times per day. However, 100% fruit juice accounted for 40% of daily fruit intake and students who ate school meals had significantly higher sugar-sweetened beverage intake with three-quarters of it coming from flavored milk. Study results suggest an opportunity for improvement in supporting and encouraging schools to continue providing nutritious meals, whole fruits instead of 100% juice, and reduce sugary drink consumption by promoting unflavored milk. The study was led by NPI researchers Kaela Plank, Amanda Linares, Sridharshii Hewawitharana and Gail Woodward-Lopez. This study was conducted as a part of a contract with the California Department of Public Health with funding from the USDA Supplemental Nutrition Assistance Program Education.

A new research brief developed by the Nutrition Policy Institute outlines the results and implications of the 2023 study: “Supplemental Nutrition Assistance Program Education reductions during COVID-19 may have exacerbated health inequities.” The study examined changes in Supplemental Nutrition Assistance Program Education programming by California's local health departments during the COVID-19 pandemic. In March 2020, when schools and other institutions closed their doors in response to the COVID-19 emergency, the impact on public health programs like SNAP-Ed was immediate and large. As the pandemic continued, California's local health departments reported numerous challenges, including the diversion of staff, funding and other resources from programs like SNAP-Ed to emergency response. NPI researchers documented dramatic reductions in the reach and dose of local health department SNAP-Ed programming during the early stages of the pandemic. Reductions disproportionately impacted disadvantaged communities, including those with higher poverty, higher proportions of Black and Latino residents and less healthy neighborhood conditions. Disproportionately reduced access to important health programs may have worsened health disparities in diet and physical activity-related chronic diseases, as well as increasing susceptibility to COVID-19. This study demonstrates the importance of an equity-centered approach to promoting healthy eating and active living, even—or perhaps especially—during public health emergencies. The peer-reviewed study was authored by NPI researchers Gail Woodward-Lopez, Erin Esaryk, Sridharshi Hewawitharana, Janice Kao, Evan Talmage and Carolyn Rider. The research brief was created by NPI's CalFresh Healthy Living Evaluation Unit, including: Carolyn Rider, Miranda Westfall, Reka Vasicsek and Summer Cortez.

A recent study finds that comprehensive school-based Supplemental Nutrition Assistance Program-Education, also known as SNAP-Ed, interventions focused on improving wellness policies and increasing physical activity opportunities are associated with better student fitness. Researchers identified predominant combinations of school-based, physical activity-focused SNAP-Ed interventions and then looked at how they affected student fitness. Study data included over 442,000 fifth and seventh-grade students attending nearly 4,300 public schools in California communities with low-income in 2016-2017. Students in schools with SNAP-Ed interventions combining policy changes and improved physical activity opportunities had better cardiorespiratory fitness, as measured by VO₂ max. On average, these students had 1.17 mL/kg/min greater VO₂max than students at schools without interventions. They also had greater VO₂ max compared to students in schools with any other type of intervention combination. This study suggests that focusing on both wellness policy changes and increased physical activity opportunities may have a synergistic effect and may warrant prioritization in SNAP-Ed program planning and implementation. The study, published in Preventive Medicine, was conducted by Nutrition Policy Institute researchers Sridharshi Hewawitharana, Gail Woodward-Lopez, Hannah Thompson, and Wendi Gosliner; Arizona State University researchers Punam Ohri-Vachaspati and Francesco Acciai; and California Department of Public Health researcher John Pugliese.