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Research for healthy food, people and places

The Nutrition Policy Institute (NPI) envisions a world in which healthy food, beverages and opportunities for physical activity are accessible, affordable, equitable and sustainable for everyone.

NPI's mission is to conduct and translate policy-relevant research to transform environments for healthy children, families and communities.

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  • Study examines associations among participants in safety-net programs with government perceptions, welfare stigma, and discrimination

    Feb 15, 2024

    Safety net programs such as the Supplemental Nutrition Assistance Program, known as SNAP nationally and  CalFresh in California, and the Earned Income Tax Credit (EITC) provide great benefits to families facing economic hardship and food insecurity. However, participation in these programs was lower in California compared to the national average. Nutrition Policy Institute researchers examined the associations of participation in SNAP and receipt of the Earned Income Tax Credit with perceptions of government, welfare stigma, and discrimination among families in California with low incomes. Researchers conducted a cross-sectional survey and interviews involving 497 caregivers of young children in California between August 2020 and May 2021. Study results highlighted that SNAP participants and EITC recipients had greater perceptions of social stigma compared to eligible non-participants in these programs in the beginning of the pandemic. Further, SNAP was associated with program stigma and experiences of discrimination among food-insecure participants. This study suggests that reducing stigma related to safety net program participation is important, and policymakers should consider initiatives to improve messaging and outreach that may help. The study was recently published in the Health Affairs Scholar journal. This study was conducted by Nutrition Policy Institute researchers Richard Pulvera and Wendi Gosliner, along with Kaitlyn Jackson and Rita Hamad of Harvard T.H. Chan School of Public Health, and Lia Fernald with the School of Public Health, University of California Berkeley.

  • Nutrition Policy Institute comments to the US Food and Drug Administration’s strategies to reduce added sugars consumption in the United States

    Feb 13, 2024

    The excessive consumption of added sugars by Americans has surpassed the recommended levels outlined in the Dietary Guidelines for Americans, highlighting a pressing public health concern.The Nutrition Policy Institute at the University of California, Agriculture and Natural Resources submitted a public comment in response to the US Food and Drug Administration's call for strategies to reduce added sugars consumption in the United States. The comment outlines 13 recommended actions for federal agencies and four recommended actions that other stakeholders can take to minimize added sugars consumption. Additionally, NPI urged the FDA to address safety concerns around the replacement of added sugars with low- and no-calorie sweeteners, specifically among children. Federal agencies and stakeholders have ample opportunities to decrease added sugars consumption in the US. and NPI emphasized the need for action on recommendations to enhance food safety and empower consumers to make healthier choices. The public comment period was open from November 6, 2023, to January 22, 2024. All submitted comments are available to view online on Regulations.gov.

  • Nutrition Policy Institute expands social media presence to LinkedIn

    Feb 1, 2024

    The Nutrition Policy Institute at the University of California, Agriculture and Natural Resources is excited to announce the launch of our official LinkedIn Business Page. Follow us for the latest updates from NPI including research and policy insights, upcoming events, job openings and news on nutrition, food policy and public health. You can also stay connected with NPI by following us on X (formerly known as Twitter) and subscribing to our quarterly email newsletter, NPI's Research to Action news brief.

  • New study suggests a need for the simplification of the student SNAP process

    Jan 31, 2024

    The Supplemental Nutrition Assistance Program, known as SNAP nationally, and commonly known as CalFresh in California, gives approximately 3.3 million college students access to essential food assistance. However, an estimated 57% of  SNAP-eligible students do not enroll. The research team conducted individual and group interviews from February 2020 and December 2021 through Zoom to gain insight into the student SNAP application process from the perspective of CalFresh county agency workers. Through this qualitative approach, the research team aimed to better understand the student SNAP application process from the perspective of county agency workers. The study identified 5 central themes, in which county agency workers perceived the process as challenging for students, and burdensome for administration workers. The research study was recently published in the Journal of Nutrition Education and Behavior by Suzanna Martinez, Sonali Singh, and Erin Esaryk with the University of California San Francisco, San Francisco's Department of Epidemiology and Biostatistics and Nutrition Policy Institute researcher, Lorrene Ritchie. 

  • NPI’s Wendi Gosliner interviewed for If I Could Change One Thing health policy podcast

    Jan 30, 2024

    Wendi Gosliner from the Nutrition Policy Institute discussed efforts to enhance population health and nutrition, focusing on eliminating disparities and improving federal food programs in a recent If I Could Change One Thing health policy podcast episode. Highlighting policy amendments during the COVID-19 pandemic, Gosliner emphasized the impact on food access, particularly for SNAP, WIC, school meal programs, and expansion of the Child Tax Credit. Stressing the importance of tackling food insecurity and reducing waste, she called for comprehensive interventions in federal nutrition programs. “When we think about growing food, and all of the inputs that are needed to grow food—the energy, the water, the soil, the human labor, the money to harvest it and transport it— then it gets to us, we buy it, we store it, and then we often throw it away," said Gosliner. "The amount of resources that's wasted with each food item that is thrown away is immense. And then not only that, but food, when it's decomposing in landfills, creates methane, which is a greenhouse gas contributor all on its own. So, for so many reasons, having us throwing away a lot of food is incredibly costly.” Gosliner, NPI's director of food policy research and translation, shared insights with co-hosts James Romine and Rocio Flores in season eight, episode one of the podcast. The podcast is produced by the San Diego State University, School of Public Health. Listen online.

  • Study examines differences in California parent’s perceptions of school meals during COVID by race and ethnicity

    Jan 29, 2024

    In May 2020, running until the end of the 2021-2022 school year, the US Congress authorized the US Department of Agriculture to issue nationwide waivers that allowed all schools to provide universal free school meals to mitigate the impacts of school closures as well as the broader economic challenges faced by families during the COVID-19  emergency. This study aimed to examine parent perceptions about school free meals and whether these perceptions differed by race and ethnicity. In May 2022, 1100 California parents of K-12 students from varying racial and ethnic backgrounds, socioeconomic statuses, and State regions responded to a survey to share their perspectives about school meals during the school year 2021-22. Across all racial and ethnic groups, California parents reported that free school meals offered multiple benefits to families, saving them money, time, and stress, and expressed that the stigma associated with school meals was low. However, parents expressed that there was an area for improvement in the variety, taste, and healthfulness of school meals, where parents of Hispanic and Asian students reported less favorable perceptions of these qualities than parents of White students. This study suggests that there is strong support among parents for free school meals, but further efforts are needed to implement a variety of culturally appropriate school meals and make improvements in their taste and healthfulness. Results from the study were recently published in the Health Affairs Scholar journal. The study was conducted by Nutrition Policy Institute researchers Monica Zuercher, Christina Hecht, Kenneth Hecht, and Dania Orta-Aleman in collaboration with Juliana Cohen, Deborah Olarte, and Leah Chapman from Merrimack College, Punam Ohri-Vachaspati from Arizona State University,  Michele Polacsek from the University of New England, Margaret Read from Share Our Strength, Anisha Patel from Stanford Pediatrics, and Marlene Schwartz from the University of Connecticut. 

  • Study outlines strategies needed for financial stability in an evaluation of a food hub intervention

    Jan 16, 2024

    Nutrition Policy Institute researchers studied an intervention for the expansion of the Mandela Health and Wealth Net, a food hub-based healthy retail initiative located in Oakland, California. The Mandela Produce Distribution food hub aggregates, distributes, and markets source-identified food products to enhance the accessibility of affordable, high-quality produce within low-income, low-access neighborhoods. The Nutrition Policy Institute research team examined how, with a grant from the Centers for Disease Control and Prevention, Mandela Partners was able to expand their food hub while implementing complementary interventions to ensure that the residents of low-income, low-access neighborhoods had increased access to fruits and vegetables. New produce retail sites were carefully selected to be places where neighborhood residents already frequented; complementary interventions included taste tests, marketing, accommodating SNAP-EBT payment, and offering a dollar-matching program for produce purchased using SNAP-EBT. This combination of strategies resulted in improved accessibility and purchases of fruits and vegetables in low-income, low-access neighborhoods and benefited local stores and regional farms; however, the overall food hub net losses increased during the period of expansion. Researchers suggest that for food-hubs to be financially self-sustaining, adjustments may be needed to reduce operating costs and increase revenues. The study led by Janice Kao, Gail Woodward-Lopez, Maria Isabel Rangel, and Aviva Hicks was published in the Journal of Hunger & Environmental Nutrition.

  • Editorial urges bold action for equitable access to nutrition assistance by all

    Dec 20, 2023

    More Americans are now sick with diet-related conditions than are well. In the American Journal of Public Health's special issue on "Policies and Strategies to Increase Equitable Access to Family Nutrition," Lorrene Ritchie and Wendi Gosliner of the Nutrition Policy Institute advocate for bold action to improve the health and diets of all Americans. Their editorial entitled “Bold Action Needed for Equitable Access to Nutrition Assistance by All” along with the supporting research featured in the special issue emphasize that while federal nutrition assistance helps one in four Americans and over half of school-aged children, more needs to be done to address food and financial insecurity and improve the diet and health of Americans. Ritchie and Gosliner suggest that, “Currently the nutrition assistance programs conflate two separate issues, one involving people facing poverty with inadequate resources to secure adequate food and the other involving structural supports to the food system and societal norms that facilitate abundant access to and promotion of relatively cheap and unhealthy options, leading to poor diets being the status quo.” They recommend rethinking nutrition assistance's role in combating poverty, suggesting income and housing support, and separately, restructuring federal nutrition assistance programs to support healthy food consumption for all, like providing school meals for all K-12 students, and restructuring retail food environments to create new healthy norms. The special issue and editorial were published online on December 20, 2023.

  • Study finds that SNAP and WIC stores offer healthier food retail environment in low-income California neighborhoods

    Dec 19, 2023

    A recent study examined how stores' participation in federal assistance programs, such as Special Supplemental Nutrition Program for Women, Infants, and Children and the Supplemental Nutrition Assistance Program— commonly known as WIC and SNAP or CalFresh in California—influence the availability and quality of healthy foods in low-income California neighborhoods. The study assessed 731 convenience stores and small markets, and found that stores enrolled in both SNAP and WIC had greater availability of healthy food options and higher quality fresh produce compared to stores participating in neither program. Further, small markets more often carried a broader selection of high-quality fresh produce than convenience stores. The study findings suggest that implementing policies incentivizing store involvement in SNAP and WIC can improve access to healthy foods for low-income individuals. The study recently published in the Journal of Hunger & Environmental Nutrition, was conducted by Nutrition Policy Institute researchers Richard Pulvera, Sridharshi Hewawitharana, Hannah Thompson, Wendi Gosliner, and Cindy Leung with the Harvard T. H. Chan School of Public Health. The authors thank the staff at the California Department of Public Health's Nutrition and Physical Activity Branch, local health department staff and participating stores, and Gail-Woodward Lopez.

  • NPI's director of community health Suzanne Rauzon retires

    Dec 18, 2023

    Suzanne Rauzon, director of community health for the Nutrition Policy Institute, will retire in January 2024. Rauzon's University of California career began over twenty years ago when she joined the UC Berkeley Center for Weight and Health, which joined NPI in 2015. Rauzon has mentored numerous students, NPI staff and researchers. She worked on community health interventions including a variety of Kaiser Permanente initiatives to promote healthy eating and physical activity. Rauzon also pioneered new research tools including the highly influential community intervention dose index used to evaluate multiple community intervention strategies. She will continue to support NPI as an emeritus researcher beyond January 2024. Learn more about Rauzon's career and legacy in this news story. To support Rauzon's legacy and the ongoing work in health and nutrition, you can donate to NPI's Student Fellowship, which provides students from underrepresented groups the opportunity to work on NPI research and be mentored by NPI researchers.

Please see additional news items in our News section