Search Results (1,910)

Background: Household food insecurity (HFI), defined as the lack of reliable access to adequate food because of limited money or resources, may influence children’s nutritional status. This study aimed to examine the association between HFI risk, based on a single screening item, and underweight and obesity among kindergarten children in Nevada. Methods: Cross-sectional data from the Kindergarten Health Survey (KHS) collected across three school years (2022–2023, 2023–2024, and 2024–2025) were analyzed using a pooled sample of 7267 children. HFI risk was assessed using one item from the Hunger Vital Sign. Weight status was determined using Body Mass Index (BMI) guidelines from the Centers for Disease Control and Prevention (CDC). Descriptive statistics and multinomial logistic regression examined associations between HFI risk and underweight and obesity, adjusting for confounders. Results: Across the pooled sample, 16.3% were at risk for HFI, 16.0% were underweight, and 21.9% had obesity. In pooled analysis, HFI risk was associated with higher odds of obesity (Adjusted Odds Ratio [AOR] 1.29; 95% Confidence Interval [CI]: 1.05–1.59), but not underweight, compared with food-secure children. In year-specific analyses, higher odds of underweight were observed in 2023–2024 (AOR 1.74; 95% CI: 1.14–2.66) and 2024–2025 (AOR 1.58; 95% CI: 1.04–2.38). Conclusions: HFI risk was associated with obesity among kindergarten children in Nevada, while associations with underweight were observed only in certain school years and should be interpreted cautiously. These findings suggest HFI risk as an important early childhood health concern and support the need for nutrition support, family assistance, and longitudinal research. Full article

Background: Women remain the primary caregivers globally, especially in rural, low-resource settings plagued by poverty, unemployment, low education and poor infrastructure. These factors limit caregiving capacity, heighten vulnerability and increase the risk of food insecurity in female-headed households. Objective: To establish a baseline profile of caregivers of primary school children. Methods: Phase 1 (baseline) of the study was conducted using a quantitative, exploratory cross-sectional survey design among 75 female caregivers of children aged 7–13 years in Qwa-Qwa, Free State Province. Participants were recruited using convenience sampling. Data were collected with a structured, pre-validated questionnaire on socio-demographics, alongside anthropometric measurements. Data were analysed using descriptive statistics. Results: Most participants were unemployed (73.3%) and had low educational attainment, with 86.7% having completed primary school or less. A substantial proportion of households (80.0%) reported a monthly income below R1000. Food insecurity was common, with 69.3% of caregivers reporting experiences of food shortages. Household infrastructure was limited, particularly in refuse removal services (96.0% without access). Despite these socio-economic constraints, a high prevalence of overweight and obesity (72.5%) was observed amongst the participants. Conclusions: Caregivers experience severe, overlapping socio-economic and environmental vulnerabilities alongside a high prevalence of overweight and obesity. The study highlights the need for multi-sectoral interventions focused on poverty reduction, rural infrastructure development, improved service delivery, women’s empowerment and strengthened livelihood opportunities to improve household nutrition and resilience. Full article

Food insecurity has increasingly emerged as a structural concern in high-income countries, yet its territorial dimensions and the role of local welfare infrastructures remain underexplored. This study addresses this gap by analyzing the spatial and temporal dynamics of food assistance systems in Italy using administrative data from the Fund for European Aid to the Most Deprived (FEAD) program over the period 2019–2023. Adopting an exploratory and system-oriented approach, the paper develops three operational indices to capture key dimensions of local food assistance: demand intensity (Food Aid Index, FAI), organizational coverage (Land Coverage Index, LCI), and functional diversification (Food Aid Diversification Index, FDI). These indicators are used to examine territorial disparities and identify structural patterns across provinces. The results reveal marked spatial heterogeneity, persistent North–South divides and diverse configurations of demand and service provision. The analysis highlights potential mismatches between the intensity of food assistance demand and the capacity of local systems to respond, pointing to differentiated territorial trajectories. Rather than directly measuring food insecurity, the study interprets food assistance as a proxy for the interaction between social need and institutional response. This perspective helps identify infrastructural inequalities and improve understanding of how food assistance systems are embedded within broader welfare configurations. Full article

As global trends continue to embrace environmentally friendly, plant-based diets, food systems that are nutrient-dense, climate-resilient, and economically viable in addressing protein–energy malnutrition, micronutrient deficiencies, and food insecurity have increased. Although cereal–legume combinations are widely recognised to be highly nutritious, most studies have focused primarily on enhancing compositional efficiency and have overlooked their interactions with the food matrix and the processing-mediated transformations they undergo. This review combines recent findings examining cereal–legume food matrices as functional systems, with particular emphasis on nutritional complementarity, bioactive interactions, processing-induced modifications, and sensory acceptability. Studies indicate that cereals and legumes provide complementary amino acid profiles, dietary fibre, essential micronutrients, and phytochemicals within these composite matrices that influence digestibility, bioavailability, antioxidant activity, and glycaemic response. Processing methods, including fermentation, germination, roasting, and extrusion, modulate these interactions by releasing bound phenolics, reducing antinutritional factors, and altering starch–protein–phenolic complexes, thereby affecting health functionality and sensory quality. However, inadequately optimised processing can affect nutrient retention and consumer acceptability. Overall, this review emphasises the relevance of integrating food matrix science and processing optimisation for the production of functional, acceptable, and sustainable cereal–legume foods that promote product innovation, public health improvement, and the utilisation of underutilised crops for sustainable food systems. Full article

Objectives: Food insecurity (FI) among college students is an emerging global public health concern. While the burden is international in scope, this systematic review evaluates the prevalence of FI in college populations in the United States (U.S.) and examines the suitability of commonly used FI assessment tools for this population. Methods: A systematic search of PubMed, Scopus, and Web of Science was conducted (up to April 2026) in accordance with the PRISMA 2020 Abstracts checklist. Eligible studies were peer-reviewed research articles published between 2005 and 2026, conducted in the U.S., written in English, and including college or university students with sample sizes ≥ 30. Studies were required to use validated FI assessment tools developed by the United States Department of Agriculture (USDA) or Health Watch. Study quality was assessed using the Joanna Briggs Institute Critical Appraisal tools and only studies rated as moderate or high quality were included. Results were synthesized by grouping studies according to the FI assessment tools used. Results: Thirty studies met the inclusion criteria (total n = 213,624 students surveyed). FI prevalence among U.S. college students ranged from 14% to 72.9%. Variability in estimates was influenced by the assessment tool used, demographic characteristics, institutional settings, and regional socioeconomic differences. Shorter screening instruments, including the USDA six-Item Household Food Security Survey Module (HFSSM) Short Form and Hunger Vital Sign, demonstrated greater variability in reported FI prevalence (47% and 41%, respectively) compared with longer assessment measures. Higher FI prevalence was also more frequently reported among students of color, those from lower socioeconomic backgrounds, and female students. Conclusions: Findings demonstrate FI is prevalent among college students. Limitations of the current study include restriction to three databases, exclusion of pre-2005 studies, and inclusion of only U.S.-based studies. Variability in assessment methods, as well as consideration of confounding variables (e.g., socioeconomics, demographics and institutional settings), underscores the need for context-specific tools tailored to this population to inform effective interventions and policies globally. Full article

Food security in middle-income countries is a growing phenomenon, becoming more relevant than ever before. This study examines the effects of government expenditure, nutrition, and sustainability on health and food security in middle-income countries, with a focus on child stunting under macroeconomic constraints. It measures the impact on the empirical environment, accounting for relevant macroeconomic constraints that affect child stunting. Using the System Generalized Method of Moments (System–GMM) model to control for endogeneity and persistence in food security, a panel data set of 35 middle-income countries over the period 2000–2023 is employed. The results reveal strong persistence in food security dynamics (β = 0.642, p < 0.01). Government health expenditure significantly improves food security (β = −0.481, p < 0.01), whereas inflation (β = 0.074), public debt (β = 0.028), and exchange rate depreciation (β = 0.516) increase food insecurity. Child stunting was positively associated with food insecurity (β = 0.219, p < 0.01), whereas sustainability was associated with improved food security outcomes (β = −0.273, p < 0.05). The long-run effect of government health expenditure (−1.344) substantially exceeds its short-run impact, highlighting the importance of sustained investment. The findings underscore the need for integrated policies that combine public health investment, macroeconomic stability, and sustainability-oriented development to strengthen food security and reduce chronic malnutrition in middle-income countries. Full article

Climate change represents one of the defining global health challenges of the 21st century, with far-reaching implications for population health, health systems, and health equity. The acceleration of environmental change, evidenced by record-breaking global temperatures, extreme weather events, and ecological degradation, poses a direct threat to achieving Sustainable Development Goal 3 (SDG 3), which aims to ensure healthy lives and promote well-being for all. This manuscript presents a narrative review and policy analysis of the intersection of climate change and global public health in light of the outcomes of the 2025 United Nations Climate Change Conference (COP30) in Belém, Brazil. Drawing on peer-reviewed literature, major institutional reports, and relevant policy documents, we explore how climate change exacerbates communicable and non-communicable diseases, undermines health system resilience, and disproportionately affects vulnerable populations worldwide. Particular attention is given to heat-related morbidity, infectious disease expansion, air pollution, food and water insecurity, displacement, gender inequities, antimicrobial resistance, and mental health impacts. The paper highlights the significance of the Belém Health Action Plan (BHAP), which is treated here as a COP30-associated action framework that places health more centrally within climate policy discussions. However, major challenges remain, including its voluntary orientation, the absence of dedicated financing mechanisms within the framework itself, and limited clarity on accountability arrangements, as identified through our synthesis of the available policy and evidence base. We argue that achieving SDG 3 is no longer feasible without integrating climate adaptation and mitigation into health systems and policies, and that progress will depend on translating global commitments into context-specific country strategies, governance arrangements, and implementation pathways. Full article

Indigenous food systems are increasingly threatened by climate change, socio-economic transformations, and reduced access to traditional lands and resources, contributing to disproportionately high levels of food insecurity among Indigenous peoples. Despite growing recognition of Indigenous food systems within sustainability research, limited attention has been given to Indigenous food system governance across different contexts. This study examined: (1) how Indigenous food systems vary across continents; (2) the key characteristics of Indigenous food system governance; and (3) how these characteristics are expressed within Sri Lankan Vedda communities. A systematic literature review of 143 publications from Web of Science and Scopus was conducted alongside a multi-sited case study involving 114 semi-structured interviews across six Vedda communities in Sri Lanka. Findings revealed continental variations in food sourcing, food sources, food use, and harvesting practices. Eight interconnected governance characteristics were identified: co-management, leadership, participatory research, partnerships, social networks, mutualism, collective action, and religious/cultural dimensions. Evidence from Sri Lankan Vedda communities demonstrated that strong leadership, social cohesion, and collaborative partnerships enhanced food security and resilience, whereas weakened governance structures and limited external support contributed to food insecurity. The study highlights the importance of strengthening Indigenous self-governance to support sustainable Indigenous food systems. Full article

This article investigates food poverty in South Tyrol, a generally affluent region, to understand how socio-economic changes—particularly the COVID-19 pandemic—have reshaped patterns of vulnerability within local food systems and challenged social sustainability. Using a qualitative approach, the study draws on interviews with institutional and third-sector actors, adults involved in local food networks, and focus groups to capture diverse perspectives on access to food. The findings reveal a coexistence of overall economic prosperity with hidden forms of food insecurity and unequal access to healthy and sustainable food. Although official statistics report relatively low levels of childhood overweight and obesity, certain groups—including elderly individuals, migrant families, and low-income households—face increasing challenges due to rising living costs and constrained access to nutritious food. The pandemic functioned as a temporary stressor that exposed pre-existing fragilities while also encouraging adaptive responses within local welfare systems. In particular, alternative food networks such as solidarity purchasing groups and emerging food cooperatives play a complementary role by promoting food autonomy, social support, and dignity-based assistance. These initiatives highlight forms of need not always captured by traditional welfare mechanisms. The study concludes that addressing food poverty in high-income contexts requires integrated, place-based strategies that combine social inclusion, nutritional education, intersectoral governance, and community-driven food practices. Full article

Climate change presents significant challenges to agriculture worldwide, leading to food insecurity and impacting rural livelihoods. Maize farming is especially vulnerable to extreme weather, such as heavy rainfall, high temperatures, soil acidity, humidity, and poor irrigation, which reduce crop yields and raise concerns about food security. The study aimed to develop a reliable and accurate machine learning method to predict maize crop yields using historical climate data to facilitate decision-making. This allows farmers and agronomists to forecast maize production based on past data for adaptation. A dataset from Meteo Rwanda and maize yield data from the Kayonza district, Rwanda, were used for training and testing. The weather data included annual mean temperature, maximum temperature, minimum temperature, rainfall, and soil temperature over the past thirteen years. The data were analyzed using machine learning techniques such as Random Forest regressor, Extreme Boost regressor, Gradient, Support Vector Machine, and LASSO (Least Absolute Shrinkage and Selection Operator). The results show that developing a high-yield crop depends on predicting and integrating climate variables, especially temperature and rainfall. Overall, Random Forest, Support Vector Machine, and Extreme Boost outperformed LASSO, with R² values of 0.957, 0.955, and 0.953, compared to 0.256 for LASSO. Full article

Balancing wetland conservation with food security is a critical challenge for developing countries. This study compares land use change and its impacts on soil properties in two hydrologically distinct wetlands: the rain-fed Jinchuan Peatland in China and the flood-fed Kilombero Valley Floodplain (KVFP) in Tanzania. Using remote sensing data from 1990 to 2018 and soil physicochemical analysis, we found divergent reclamation trajectories. Wetland conversion has slowed in China but accelerated in Tanzania’s KVFP due to population pressure. Our results reveal a fundamental mechanism: rain-fed wetlands, lacking external nutrient replenishment, experience significantly greater soil degradation after conversion compared to flood-fed wetlands, which benefit from continued alluvial sediment inputs. Both sites showed post-conversion declines in soil moisture, total organic carbon (TOC), and total nitrogen (TN), alongside increased pH and bulk density. However, soil fertility loss was markedly more severe in Jinchuan than in KVFP. This disparity is attributed to the inability of rain-fed systems to replenish nutrients externally, whereas flood-fed KVFP benefits from continued alluvial sediment inputs. Our findings elucidate a key mechanism: flood-fed wetlands possess a natural resilience to agricultural disturbance through hydrological replenishment, making them potentially more suitable for sustainable utilization in food-insecure nations. Consequently, we propose that wetland management policies must be customized based on water source type and national development context, advocating for the targeted, science-based utilization of flood-fed wetlands as a strategic approach to reconcile food production with ecosystem preservation in regions like Tanzania. Full article

Background/Objective: Food insecurity is increasingly recognised as a concern among university students. Less is known about the interrelationships between food insecurity, psychological distress, and disordered eating risk in this population. This study aimed to examine associations between food insecurity, psychological distress, and disordered eating risk among university students, and to explore whether psychological distress mediates the association between food insecurity and disordered eating. Methods: A cross-sectional survey among university students assessed food insecurity using the USDA HFSSM. Psychological distress was assessed using the Kessler Psychological Distress Scale (K6), with disordered eating risk measured using EAT-8. Adjusted logistic regression models examined associations between food insecurity severity with psychological distress and disordered eating risk, controlling for age, living situation, and enrolment type. Mediation analysis explored whether psychological distress statistically mediated the association between food insecurity and disordered eating. Results: Overall, 63.2% of the 348 students surveyed reported some level of food insecurity, 15.8% met criteria for psychological distress and 42.0% were classified as being at high risk of disordered eating. In adjusted models, moderate (OR 2.46, 95% CI: 1.06–5.69) and severe food insecurity (OR 4.27, 95% CI: 1.83–9.97) were associated with higher odds of psychological distress. Severe food insecurity was also associated with higher odds of disordered eating risk (OR 2.07, 95% CI: 1.12–3.84). Mediation analysis indicated a statistically significant indirect association between food insecurity and disordered eating through psychological distress (B = 0.241, 95% CI: 0.065–0.418), with 43.5% of the total association statistically accounted for by psychological distress. Conclusions: Findings indicate an indirect statistical association in which food insecurity is associated with higher psychological distress, which is in turn associated with higher disordered eating risk, based on cross-sectional analysis. Longitudinal studies are needed to clarify temporality and better understand these relationships. Full article

Background/Objectives: This review examined how different levels of U.S. food-security (FS) relate to dietary markers, informing the concept of nutrition security over the lifespan. Methods: The authors followed PRISMA-ScR guidelines. PubMed, CINAHL, Scopus, Embase, and CAB Abstracts were searched for eligible U.S.-based, English-language studies examining FS and dietary markers in free-living, disease-free populations, excluding COVID-19-era research. Two reviewers independently screened records in Covidence, with discrepancies resolved by a third reviewer. The percentage of studies evaluating >2 FS levels was determined. Dietary markers were classified into three domains: food and beverage (9 components), nutrient (16 components) and bioactive (2 components) markers. The percentages of studies with significant differences were estimated for each dietary domain. Results: Of 1069 records, 78 met full-text eligibility. Among these, 15% evaluated dietary markers across >2 FS levels. Among adults, differences by FS status were observed in 67% of assessed food and beverage components (6 out of 9), 50% of nutrient components (8 out of 16), and all evaluated bioactives (100%; 2 out of 2). Children exhibited differences in all assessed food and beverage components (100%; 9 out of 9) and 29% (2 out of 7) of nutrients by FS level. Adolescents had fewer dietary marker differences than children and adults. Findings among infants, pregnant women and older adults were limited, with no studies for lactating women. Conclusions: Low FS level is associated with poorer dietary markers across the lifespan compared with FS. Age-specific differences highlight the need for targeted interventions and nutrition security measures. Full article

Background/Objectives: Food and nutritional insecurity (FNI) is a major social determinant of health that disproportionately affects older adults, with significant implications for their health, nutrition, and well-being. In this context, this scoping review aims to map and synthesize the available scientific evidence on the main determinants of FNI among older adults, considering socioeconomic, health-related, functional, psychosocial, and structural factors. Methods: A scoping review was conducted in accordance with the Joanna Briggs Institute methodology and reported following the PRISMA-ScR guidelines. A comprehensive search was performed across eight databases (PubMed/MEDLINE, EMBASE, Scopus, Web of Science, CINAHL, LILACS, ProQuest, and Google Scholar), up to November 2024. Original studies addressing FNI in individuals aged ≥60 years were included. Study selection and data extraction were conducted independently by two reviewers, with disagreements resolved by consensus. Results: Of 5897 records identified, 15 studies met the inclusion criteria. FNI in older adults was described as a multifactorial phenomenon associated with low income, limited education, social isolation, widowhood, chronic diseases, functional limitations, depressive symptoms, and poor housing conditions. Structural determinants, including institutional racism, gaps in social protection systems, and barriers to accessing food assistance programs, were also reported. Considerable heterogeneity in measurement instruments highlights the complexity of assessing FNI in this population. Conclusions: Addressing FNI in older adults requires moving beyond isolated interventions toward integrated, intersectoral strategies that tackle its underlying social and structural drivers. Strengthening social protection systems, reducing access barriers, and promoting equity-oriented policies are essential to ensure adequate nutrition and support healthy and dignified aging. Full article

This study explores the relationships among climate change, food security, economic growth, and migration in the nine countries with the lowest rankings on the Notre Dame Global Adaptation Initiative (ND-GAIN) Index. It identifies the most vulnerable countries to climate change and the least prepared, using panel data from 1999 to 2022. The results show a bidirectional causal relationship between climate change and food security. Climate change worsens food insecurity by reducing agricultural productivity, which in turn drives up food prices. Conversely, agricultural policies aimed at increasing production can contribute to climate change if implemented unsustainably. A bidirectional causal relationship has been identified between climate change, food security, and migration. Finally, a bidirectional causal relationship has also been determined between economic growth, climate change, and migration. Changes in economic growth affect sectors, the labor market, and overall well-being, which in turn influence migration decisions. All these findings provide policymakers with valuable guidance for developing sustainable strategies that consider climate change, effectively manage migration, and prioritize food security. The findings indicate that climate change, food security, economic growth, and migration cannot be addressed in isolation; therefore, a holistic policy approach should be adopted. Full article