Whole Grains

Nutrition Policy Institute News: Article

Longer lunch time periods help students eat more but study finds evidence of inequities in lunch period length by free or reduced price meal eligibility

February 11, 2026
School meals provide a significant portion of children’s daily nutrition, and policies like the Healthy, Hunger-Free Kids Act, Community Eligibility Provision, and Healthy School Meals for All have improved access to healthier meals. However, variations in lunch period lengths and seated time may affect meal…
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Nutrition Policy Institute News: Article

Nutrition Policy Institute’s initial response to the new 2025-30 Dietary Guidelines for Americans

January 8, 2026
By Hannah R Thompson, Wendi Gosliner, Miranda W Brown, Christina E Hecht, Kenneth Hecht, Danielle Lee
On January 7, 2026, the U.S. Departments of Health and Human Services (HHS) and Agriculture (USDA) released the 2025-2030 Dietary Guidelines for Americans (DGAs). The newly released Guidelines deviate from prior DGAs in both process and content. What happenedU.S. law requires that the DGAs be revised…
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Peer-Reviewed Publications

Below is a comprehensive list of peer-reviewed publications by Nutrition Policy Institute researchers and our collaborators in reverse chronological order. See also our collection of PubMed indexed peer-reviewed publications by NPI researchers.View publications by year: 2026 • 2025 • 2024 • 2023 • 2022 …
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Nutrition Policy Institute: Collection

Reports

Nutrition Policy Institute's research and evaluation reports include documents that presents the findings of a systematic investigation in a clear, organized, and objective manner. The reports detail the research process, methods, data, and results to communicate complex information and insights to a…
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Nutrition Policy Institute: Collection

Research Briefs

Nutrition Policy Institute's research briefs are short, non-technical summaries of a study's key findings—designed to make complex research accessible to broader audiences like policymakers, practitioners, or the public—translating evidence into real-world application through plain language, bullet points,…
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NPI research brief highlights importance of store participation in SNAP and WIC for healthy food retail environment

March 27, 2025
By Reka Vasicsek, Summer J Cortez, Richard Pulvera, Wendi Gosliner
A new research brief from the Nutrition Policy Institute highlights the role of federal and state programs in promoting healthy and equitable food retail environments. The study, “Availability and Quality of Healthy Foods Vary by Store Participation in SNAP and WIC in Low-Income California Neighborhoods,”…
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Best of Science Letters

The Nutrition Policy Institute's mission is to conduct and translate policy-relevant research to transform environments for healthy children, families and communities. While federal agencies must solicit input via public comment periods, Best of Science Letters may be used to translate the evidence base to…
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Online Trainings

The Nutrition Policy Institute has created several online trainings to support healthy eating and active living in a variety of settings including food banks and childcare.
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