Journal Articles
Permanent URI for this collectionhttps://mro.massey.ac.nz/handle/10179/7915
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Item The impact of food poverty on educational achievement: a New Zealand case study in global context(Frontiers Media S.A., 2025-01-01) McKelvie Sebileau P; Swinburn B; de Seymour J; Rastmanesh RHunger negatively impacts a student’s ability to engage and learn at school. Rising food poverty among school students across the globe is increasingly recognized as a critical factor impacting educational achievement. International assessments show a consistent and strong link between student hunger and lower academic performance, yet detailed analysis remains limited. The aim of this paper is to quantify the impact of student hunger on educational attainment. We use New Zealand as a case study, a high-income country with surprisingly high levels of food poverty. We carry out a cross sectional study of New Zealand data from three large-scale educational datasets comparing student achievement scores with self-reported food insufficiency at home. We observed a consistent, repeated and large effect size, with students experiencing hunger showing a learning gap of up to 4 years compared to their peers. This effect holds constant even after adjusting for student socio-economic status. Overall, these large dataset results demonstrate how being hungry at school and/or home is a major barrier to learning and that structural changes to reduce poverty, as well as programmatic responses such as free school lunches, must become national education priorities.Item Modeling the feasibility of fermentation-produced protein at a globally relevant scale(Frontiers Media S.A., 2024-07-10) Fletcher AJ; Smith NW; Hill JP; McNabb WCIntroduction: Fermentation-produced protein (FPP) is gaining global interest as a means of protein production with potentially lower cost and environmental footprint than conventionally-produced animal-sourced proteins. However, estimates on the potential performance of FPP vary substantially, limiting assessment of its scalability and utility. Methods: We integrate life cycle analysis data with nutritional and economic data in an interactive online tool, simulating the requirements and consequences of fermentation at a globally-relevant scale. Results: The tool demonstrates that production of an additional 18 million tons of protein annually via fermentation (~10% of 2020 global consumption) would necessitate 10–25 million hectares of feedstock cropland expansion/reallocation, utilize up to 1% of global electricity generation, produce 159 million tons CO2 equivalents, and have a total process input cost of 53.77 billion USD, with a negligible impact on nutrient supply beyond protein. Discussion: This tool should be used to inform the debate on the future use of fermentation in the food system.Item Estimating cropland requirements for global food system scenario modeling(Frontiers Media S.A., 2022-12-16) Smith NW; Fletcher AJ; Millard P; Hill JP; McNabb WC; Ridoutt BGIntroduction: The production of plant crops is foundational to the global food system. With the need for this system to become more sustainable while feeding an increasing global population, tools to investigate future food system scenarios can be useful to aid decision making, but are often limited to a calorie- or protein-centric view of human nutrition. Methods: Here, a mathematical model for forecasting the future cropland requirement to produce a given quantity of crop mass is presented in conjunction with the DELTA Model®: an existing food system scenario model calculating global availability of 29 nutrients against human requirements. The model uses national crop yield data to assign yield metrics for 137 crops. Results: The crops with the greatest variation between high and low yielding production were specific nuts, fruits, and vegetables of minor significance to global nutrient availability. The nut crop group showed the greatest overall yield variation between countries, and thus the greatest uncertainty when forecasting the cropland requirement for future increases in production. Sugar crops showed the least overall yield variation. The greatest potential for increasing global food production by improving poor yielding production was found for the most widely grown crops: maize, wheat, and rice, which were also demonstrated to be of high nutritional significance. Discussion: The combined cropland and nutrient availability model allowed the contribution of plant production to global nutrition to be quantified, and the cropland requirement of future food production scenarios to be estimated. The unified cropland estimation and nutrient availability model presented here is an intuitive and broadly applicable tool for use in global food system scenario modeling. It should benefit future research and policy making by demonstrating the implications for human nutrition of changes to crop production, and conversely the implications for cropland requirement of food production scenarios aimed at improving nutrition.Item Analyzing the complexity of animal products’ processing and its impact on sustainability(Frontiers Media S.A., 2024-08-21) Germond A; Fardet A; Álvarez García C; Boland M; Ming Hoang H; Mullen A-M; Kaur L; Nevárez-Moorillón GVProcessing is an inevitable step in the manufacturing of animal-based foods (ABF) and animal by-products (ABP). However, our society has reached a point where our food systems have reached unsustainable levels. The impact of ABF/ABP processing on sustainability has been arguably overlooked in comparison with production. This perspective paper aims to discuss and identify research gaps regarding the assessments of the sustainability of ABF/ABF processing. First, we describe why processing techniques can have various levels of complexity, with uses that are more or less impactful on the environment depending on the products and possible synergies. In the second part, we review how impacts on sustainability have been evaluated at global and local scales using life cycle assessments (LCA). To contribute to such an approach, we suggest novel or recently introduced types of indicators that would improve future LCA studies by capturing relevant information. In the third part, we encourage a systemic view of sustainability by considering the complexity of the whole supply chains of ABF and ABP. We highlight the current gaps or challenges in evaluating sustainability across supply chains and point the readers toward recent studies that address these limitations. We hope this perspective will help improve the design of academic and industrial studies or evaluation of ABF and ABP sustainability.Item Partnerships for the Sustainable Development Goals: a call for more science(Frontiers Media S.A., 2024-04-11) Berry EM; Burlingame B; le Coutre J; Nikolaou CKItem Food for people in place: reimagining resilient food systems for economic recovery(MDPI (Basel, Switzerland), 2020-11-11) Dombroski K; Diprose G; Sharp E; Graham R; Lee L; Scobie M; Richardson S; Watkins A; Martin-Neuninger RThe COVID-19 pandemic and associated response have brought food security into sharp focus for many New Zealanders. The requirement to “shelter in place” for eight weeks nationwide, with only “essential services” operating, affected all parts of the New Zealand food system. The nationwide full lockdown highlighted existing inequities and created new challenges to food access, availability, affordability, distribution, transportation, and waste management. While Aotearoa New Zealand is a food producer, there remains uncertainty surrounding the future of local food systems, particularly as the long-term effects of the pandemic emerge. In this article we draw on interviews with food rescue groups, urban farms, community organisations, supermarket management, and local and central government staff to highlight the diverse, rapid, community-based responses to the COVID-19 pandemic. Our findings reveal shifts at both the local scale, where existing relationships and short supply chains have been leveraged quickly, and national scale, where funding has been mobilised towards a different food strategy. We use these findings to re-imagine where and how responsibility might be taken up differently to enhance resilience and care in diverse food systems in New Zealand.Item “Now the Forest Is Over”: Transforming the Commons and Remaking Gender in Cambodia's Uplands(Frontiers Media S.A, 2021-10) Beban A; Bourke Martignoni JCommunal lands and natural resources in rural Cambodia have transformed over the past 30 years as the country attempts to transition from conflict to liberal democracy and integrates into global agricultural value chains. We find that gender relations are changing as a result of land privatization and the ensuing social and ecological crises of production and reproduction. The forest has become a space for the articulation of new masculinities modulated through class and racialised power, while women are increasingly relegated to the private space of the home and village, negotiating expectations that they perform care, farming and food provisioning work while juggling household debt. We ground our argument in a large sample of qualitative interviews conducted between 2016 and 2020 in the upland provinces of Kampong Thom, Kratie and Ratanakiri that provide narrative accounts of the transformation of common forest and grazing lands, logging livelihoods and food provisioning practices. Using a feminist political ecology perspective, we highlight the contradictory processes of enclosure of the commons, which operate simultaneously as sites of violence, resistance, adaptation and continuity.Item Nutrient Dense, Low-Cost Foods Can Improve the Affordability and Quality of the New Zealand Diet-A Substitution Modeling Study(MDPI (Basel, Switzerland), 2021-07-27) Starck CS; Blumfield M; Keighley T; Marshall S; Petocz P; Inan-Eroglu E; Abbott K; Cassettari T; Ali A; Wham C; Kruger R; Kira G; Fayet-Moore FThe high prevalence of non-communicable disease in New Zealand (NZ) is driven in part by unhealthy diet selections, with food costs contributing to an increased risk for vulnerable population groups. This study aimed to: (i) identify the nutrient density-to-cost ratio of NZ foods; (ii) model the impact of substituting foods with a lower nutrient density-to-cost ratio with those with a higher nutrient density-to-cost ratio on diet quality and affordability in representative NZ population samples for low and medium socioeconomic status (SES) households by ethnicity; and (iii) evaluate food processing level. Foods were categorized, coded for processing level and discretionary status, analyzed for nutrient density and cost, and ranked by nutrient density-to-cost ratio. The top quartile of nutrient dense, low-cost foods were 56% unprocessed (vegetables, fruit, porridge, pasta, rice, nuts/seeds), 31% ultra-processed (vegetable dishes, fortified bread, breakfast cereals unfortified <15 g sugars/100 g and fortified 15–30 g sugars/100 g), 6% processed (fruit juice), and 6% culinary processed (oils). Using substitution modeling, diet quality improved by 59% and 71% for adults and children, respectively, and affordability increased by 20–24%, depending on ethnicity and SES. The NZ diet can be made healthier and more affordable when nutritious, low-cost foods are selected. Processing levels in the healthier, modeled diet suggest that some non-discretionary ultra-processed foods may provide a valuable source of low-cost nutrition for food insecure populations.Item Assessing Diet Quality of Indigenous Food Systems in Three Geographically Distinct Solomon Islands Sites (Melanesia, Pacific Islands)(MDPI (Basel, Switzerland), 2021-01) Vogliano C; Raneri JE; Maelaua J; Coad J; Wham C; Burlingame BIndigenous Solomon Islanders, like many living in Pacific Small Island Developing States (PSIDS), are currently experiencing the global syndemic-the combined threat of obesity, undernutrition, and climate change. This mixed-method study aimed to assess nutrition transitions and diet quality by comparing three geographically unique rural and urban indigenous Solomon Islands populations. Participants in rural areas sourced more energy from wild and cultivated foods; consumed a wider diversity of foods; were more likely to meet WHO recommendations of >400g of non-starchy fruits and vegetables daily; were more physically active; and had significantly lower body fat, waist circumference, and body mass index (BMI) when compared to urban populations. Urban populations were found to have a reduced ability to self-cultivate agri-food products or collect wild foods, and therefore consumed more ultra-processed foods (classified as NOVA 4) and takeout foods, and overall had less diverse diets compared to rural populations. Clear opportunities to leverage traditional knowledge and improve the cultivation and consumption of underutilized species can assist in building more sustainable and resilient food systems while ensuring that indigenous knowledge and cultural preferences are respected.