Food Sustainability

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A long, slender, light brown insect that resembles a stick walking on a tree branch.

Stick Insects Are Cool but Can Damage Your Plants

May 5, 2026
By Belinda Messenger-Sikes
Have you ever seen a walking stick insect, maybe in a museum display or at an entomology demonstration? They look just like twigs and are fascinating creatures. This makes them popular as pets in classrooms and homes. However, if pet walking sticks are accidentally or purposefully let out of their cages,…
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Baskets of cherry tomatoes on display in the produce section of a grocery store.
Nutrition Policy Institute News: Article

New publication on translating climate–food–health science into action

March 24, 2026
A new open-access publication outlines how to better translate science at the climate–food–health nexus into effective policy and practice. Published in Advances in Nutrition, authors propose a practical framework grounded in ecological systems thinking to help decision-makers navigate the complex…
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2025 Biological Evaluation Trial
Salinas Valley Agriculture: Article

2025 Biological Product Evaluation Trial in Romaine Lettuce: What Did We Learn?

February 25, 2026
By Paramveer Singh
A late-summer test on a farm near Soledad, CA, looked at eight biological product programs for romaine lettuce compared to a standard method used by growers, with normal irrigation and nutrients in the Salinas Valley. The marketable stand was the same in all treatments, and the amounts of fresh and dry…
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Toolkits

Toolkits developed by the Nutrition Policy Institute are collections of practical resources, strategies, templates, and best practices designed to help public health nutrition professionals, policymakers, and organizations improve health outcomes, address specific challenges, build capacity, and implement…
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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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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 News: Article

Parents and staff are highly supportive of freshly prepared school meals but raise concerns about food waste

September 22, 2025
By Brianna Aguayo Villalon, Danielle Lee, KC Fiedler, Lorrene D Ritchie
A recent study published in the Journal of Nutrition Education and Behavior explored the perceptions of elementary school parents and staff in a large, urban California school district that recently introduced more freshly-prepared school lunches. Based on interviews and focus groups conducted from May…
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