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State-level policies alone are insufficient to meet the federal food waste reduction goal in the United States

The United States Food Loss and Waste Reduction Goal seeks to reduce national food waste by 50%, down to 74 kg per capita, by 2030. Here we investigate state policies’ alignment with the federal goal across four policy categories. We develop a policy scoring matrix and apply it to wasted food solutions listed in the non-profit ReFED’s database to derive ranges of food waste diversion potential and projected generation across states. On the basis of state policies alone, no state can meet the federal target. We estimated a diversion potential of 5–14 kg per capita and a food waste generation of 149 kg per capita nationally in 2022, equivalent to the 2016 baseline. Without additional intervention at the state and federal level promoting a shift from food waste recycling towards prevention, rescue and repurposing, food generation in the United States will probably remain high.

Consumers’ perspectives on antibiotic use and antibiotic resistance in food animals: a systematic review

Inappropriate antibiotic use in food animals is considered a significant contributor to increasing antibiotic resistance. Consumers can play a critical role in reducing it through purchasing choices, demand, and policy advocacy. This systematic review aimed to synthesize all published literature investigating consumers’ perspectives (i.e., knowledge, perceptions, and attitudes) on antibiotic use and antibiotic resistance in food animals. We conducted a comprehensive literature search in PubMed, Web of Science, Scopus, and Google Scholar on November 14, 2022, and an updated search on April 30, 2024. We limited findings to original peer-reviewed journal articles published up to 2023 (inclusive), were written in English, and focused on knowledge/perceptions/attitudes of antibiotic use and antibiotic resistance in food animals. Of the 3815 articles identified, 39 were included. The findings suggested that consumers were concerned about antibiotic use in food animals, thus they were willing to pay more for food products with antibiotic-free or reduced-antibiotic use. However, consumers lacked deep understanding of antibiotic use practice and antibiotic stewardship in food animals as well as transmission risks of antibiotic-resistant bacteria. These findings offer valuable insights for policymakers and livestock industries to implement policy and practice changes to ensure responsible antibiotic use in food animals.

Estimating energy consumption and GHG emissions in the U.S. food supply chain for net-zero

This work provides a database of the U.S. food system’s energy consumption and GHG emissions at the national and state levels by food supply chain (FSC) stage, fuel type, and food commodity. We estimate that the U.S. FSC consumed a total 4660 TBTU (4900 PJ) of site energy, 7130 TBTU (7500 PJ) of primary energy, and generated 970 MMT of GHG emissions in 2016. Among all the stages, on-farm production is the largest energy consumer (31% primary energy) and GHG emissions contributor (70%), largely due to raising animals. Optimizing distribution can reduce the stage’s energy consumption and GHG emissions and increase products’ shelf-life. Reducing food loss and waste is another good option, as it decreases the amount of food necessary to grow, thus impacting the overall FSC. The database can help stakeholders identify stage- and region-specific strategies and measures to curtail the environmental footprint of the U.S. food system.

Global food retail environments are increasingly dominated by large chains and linked to the rising prevalence of obesity

Retail food environments influence food purchasing and dietary patterns. A global analysis of the food retail landscape allowing comparisons across geographical regions is therefore needed to tackle diet-related non-communicable diseases. Here we examine trends in retail food environments from 2009 to 2023 across 97 countries, exploring associations with changes in obesity prevalence. Increases were observed in the density of chain outlets, grocery sales from chain retailers, unhealthy food sales per capita and digital grocery sales; non-chain outlet density and the ratio of non-chain to chain outlets declined over time. South Asia and low- and middle-income countries overall experienced the most rapid transformation. Changes in retail environments and the prevalence of obesity were found to be positively correlated. As retail environments become increasingly digital and dominated by large chains, important implications for diets and health should be expected, particularly in lower-income countries.

Research framework for food security and sustainability

This article presents a framework for food security and sustainability research, developed by industry, academia, and public sector experts. Key priorities for collaborative research include reassessing food system contexts and drivers, adapting food system activities, transforming food system outcomes, developing and applying food system methodologies, and adopting an ethical and just lens. The framework emphasises the need for coordinated action across multiple scales and sectors, focusing on synergies and trade-offs as opposed to isolated food activities, to address complex challenges in food security and sustainability.

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