Food Basket Research Articles

REACH assessment of humans exposed to chemicals indirectly via the environment: screening modeling in EUSES versus state of the science.

The assessment of humans indirectly exposed to chemicals via the environment (HvE) is an assessment element of the Registration, Evaluation, Authorisation, and Restriction of Chemicals (REACH) regulation. The European Union System for the Evaluation of Substances (EUSES) is the default screening tool, aimed at prioritizing chemicals for further refinement/higher tier assessment. This review summarizes the approach used in EUSES, evaluates the state of the science in human exposure modeling via the environment, and identifies areas for further research to strengthen the confidence and applicability of EUSES for assessing HvE. It confirms that EUSES v2.2 does serve as a conservative screening tool for identifying potential human risk due to HvE (via consumption of crops, meat and milk, fish, drinking water, and inhalation). However, certain submodels within EUSES have not been updated for at least two decades. For example, for highly soluble or highly hydrophobic or ionized organic substances, substance parameters are estimated based on outdated predictive models. We recommend to also update the REACH Technical Guidance to highlight possible refinements in HvE assessments as well as the integration of measured and (bio)monitoring data. Addressing limitations in the EUSES applicability domain, particularly for highly soluble and highly hydrophobic organic substances and ionized organics, would improve its applicability. We identified that some HvE submodels in EUSES could be readily updated to improve screening-level assessment in EUSES. In addition, updating the EUSES "food basket" using recent European Union food consumption data is crucial to accurately reflect recent dietary trends. Further research is required for prediction of leaf crop and drinking water exposure to better reflect the fate of chemicals in the environment. In particular for ionizable substances, research focused on QSAR (Quantitative Structure Acitivity Relationship) development and experimental measurement of fate properties is necessary to enhance the confidence of EUSES assessments.

Estimating the epidemiological and economic impact of providing nutritional care for tuberculosis-affected households across India: a modelling study.

Approximately 20% of global tuberculosis incidence is attributable to undernutrition, increasing to more than a third in India. Targeting nutritional interventions to tuberculosis-affected households is a policy priority, but understanding of epidemiological and economic impacts is limited. We aimed to estimate the population-level epidemiological and economic effect of such an intervention. We used a previously published, age-stratified, compartmental transmission model of tuberculosis in India, and incorporated explicit BMI strata linked to disease progression and treatment outcomes. We used results from a recent trial of an intervention in which nutritional support in the form of food baskets was provided to people initiating tuberculosis treatment and to their household contacts (1200 kcal for patients and 750 kcal for contacts) to inform estimates of the impact and costs of nutritional support. We estimated the numbers of cases of tuberculosis disease and deaths due to tuberculosis disease that could be averted from 2023 to 2035 under the intervention scenario. Compared with a baseline with no nutritional intervention, at 50% coverage of adults on tuberculosis treatment and their households (around 23% of households affected by incident tuberculosis in India), providing the nutritional support intervention could prevent 361 200 (95% uncertainty interval 318 000-437 700) tuberculosis deaths and 880 700 (802 700-974 900) disease episodes from 2023 to 2035. This would be equivalent to averting approximately 4·6% (4·2-5·5) tuberculosis deaths and 2·2% (2·1-2·4) tuberculosis episodes. The additional health system cost would be US$1349 million (1221-1492), with an incremental cost-effectiveness ratio of $167 (147-187) per disability-adjusted life-year averted. The median number of households needed to treat to prevent one tuberculosis death was 24·4 and to prevent one tuberculosis case was 10·0. A nutritional intervention for tuberculosis-affected households could avert a substantial amount of tuberculosis disease and death in India, and would be highly likely to be cost-effective on the basis of the tuberculosis-specific benefits alone. None. For the Bangla and Hindi translations of the abstract see Supplementary Materials section.

Perceptions of stakeholders on the use of a simplified, combined protocol for treatment of acute malnutrition in Central African Republic.

Treatment of acute malnutrition requires novel approaches to improve coverage, reduce costs and improve the efficiency of standard protocols that separate the management of moderate acute malnutrition (MAM) and severe acute malnutrition (SAM). The use of simplified, combined protocols to treat both MAM and SAM has drawn research and policy interest among global, regional and national stakeholders. However, the perspectives of local communities and health care workers regarding the use of protocols to treat acute malnutrition in a routine health care system are generally lacking. This was a cross-sectional mixed-methods study aimed at assessing the perceptions of different stakeholders on the use of a simplified, combined protocol in two districts in the Central African Republic. Most of the respondents preferred the simplified, combined protocol over the standard protocol. They generally agreed that the protocol was easy to understand, allowed more children to receive treatment and was effective in treating acute malnutrition. The protocol modifications were well received, including the expanded admission criteria, use of mid-upper arm circumference (MUAC) only for admission and discharge criteria and reduced and simplified ready-to-use therapeutic food quantity to treat MAM and SAM. Some caregivers expressed concern with the use of MUAC only to declare recovery, flagging that underlying illnesses could still be present. The caregivers recommended the provision of other food basket interventions to improve the treatment. The support by caregivers and health care workers on the idea of training community health volunteers to treat acute malnutrition points to the potential of scaling up decentralized treatment to increase coverage in remote areas.

Применение методов форсайт-анализа для исследования продовольственного обеспечения

This article discusses the possibilities of using foresight analysis methods in relation to the issue of food supply. Taking into account the fact that food markets are a rather complex object of study, and food supply depends not only on quantitative (volume of consumption, total calorie intake), but also qualitative parameters (quality of nutrition, structure and macronutrient composition of the food basket, provision of micronutrients, etc.), using only quantitative, economic and statistical methods for analysis is inappropriate. The best effect can be achieved by foresight techniques that take into account non-trivial, deep connections and allow a more comprehensive look at the phenomenon under consideration. Taking into account the above, the authors systematized modern approaches to foresight analysis, considered the most effective methods, such as identifying weak signals and wild card events, and also identified the features of using these methodological approaches for analyzing food markets, which are subject to a wide range of difficult to predict climatic and technogenic factors, as well as factors of geopolitical and macroeconomic nature. An emphasis on identifying implicit connections, and also predicting key reference points that can have a decisive impact on the development of food markets, can help improve economic resilience in the face of emerging global food crises. Thus, the study allows us to conclude that the use of modern foresight analysis methods for studying food supply issues is highly relevant. Identification of weak signals and wild card events can allow a more rational and realistic approach to constructing scenarios for the development of food industry sectors, as well as early identification of potential threats that could destabilize the situation and have a significant negative impact on the level of food supply, both at the level of individual countries and in the world at large.

Conservation Agriculture offers system optimization for legume intensification: An on-farm study of western Indo-Gangetic Plains

ContextThe crop production in Indo-Gangetic Plain (IGP) facing serious challenges of decaling factor productivity under changing climatic scenarios with shrinking water resources driving future food insecurity. ObjectiveTo develop sustainable intensification model for future sustainability in the food basket of India’s IGP by identifying of suitable options for legume integration through system optimization practices (SOP) in rice-wheat and diversified cropping systems having higher productivity, profitability and environmental security. MethodThe field experiments were conducted at the four locations of the farmer’s field in Karnal, Haryana, India. We evaluated SOP of mungbean under zero tillage (ZT) with residue recycling and improved management practices integrated in CTR-WMb (conventional till rice-ZT wheat-mungbean), DSR-WMb (direct seeded rice-ZT wheat-mungbean) and triple ZT (raised bed) based diversified SOP of MWMb (maize-wheat-mungbean), MMuMb (maize-mustard-mungbean) and SWMb (soybean-wheat-mungbean). Results and conclusionThe on-farm study revealed that the mungbean inclusion with diversified SOP had significantly lesser water use by 51 ha-mm with enhanced partial factor productivity of total nitrogen and phosphorus (NP) applied by 14–29 % over DSR-WMb. However, the global warming potential (GWP) reduced by 60 kg CO2 eql/ha with diversified SOP over CTR-WMb. Similarly, the non-renewable energy use was reduced by ∼1200 MJ/ha with significantly increased net energy output and non-renewable energy use efficiency (EUE) by 137–203 and 27–38 %, respectively with diversified SOP over DSR-WMb. Additionally, the mungbean grain yield increased by 13 % in CTR-WMb, while the grain yield increased by 15–30 % in diversified SOP over DSR-WMb. The net returns increased by 40 USD/ha in CTR-WMb, while it significantly increased by 80–164 USD/ha in diversified SOP over DSR-WMb. However, the significantly lowest yield attributes and yield, net returns, resources use efficiency (water, nutrients and non-renewable energy) and eco-efficiency were recorded with DSR-WMb. Therefore, the mungbean inclusion in DSR-WMb was not found to be a feasible option compared to CTR-WMb and thus later can be scaled up in the existing rice-wheat system. Moreover, the mungbean inclusion with diversified SOP (MWMb/MMuMb/SWM) under ZT and residue retention produces more food with efficient use of recourses (water, nutrients and energy) for more (population) to ensure nutritional food security and environmental sustainability in western Indo-Gangetic Plains and similar agro-ecologies. SignificanceThis on-farm study provides sustainable intensification options for legume integration through system optimization practices (SOP) within the rice-wheat and diversified cropping systems to enhance system productivity and nutritional food security, improves net returns and restore soil fertility in food basket of India’s Indo-Gangetic Plain.

FORECASTING LEAFY VEGETABLE PRODUCTION IN BANGLADESH: UNRAVELLING THE NEXUS AMONG AGRO-METEOROLOGICAL FACTORS

Leafy vegetables in the food basket provide vital nutrients required for human health, but Bangladesh faces challenges of sustainable production potential due to the vulnerability of various agrometeorological factors. This study has addressed a holistic approach to forecasting leafy vegetable production through the nexus of agricultural responses and climatic factors. The secondary yearly data of seasonal leafy vegetable production and area wise daily key climatic predictors such as rainfall, humidity, sunshine, and temperature for the period 2000-2001 to 2022-2023 have been collected from Bangladesh Bureau of Statistics (BBS) and Bangladesh Meteorological Division (BMD), respectively. Scenario analysis and stepwise dynamic regression model was applied to diagnose the pattern and also forecast winter and summer leafy vegetable production for the years 2023-2024 to 2030-2031 addressing meteorological predictors. Results show that winter production is significantly influenced by the previous year’s output (lag-1), sunshine hour, and maximum temperature. In contrast, summer leafy vegetable production is influenced solely by previous year production. Using growth projection of sunshine hours and maximum temperature of Bangladesh Meteorological Department (BMD) in the fitted dynamic regression model, winter leafy vegetable production is forecasted to rise from 167,558 tons in 2022-2023 to 211,929 tons by 2030-2031. Summer production is expected to increase from 176,234 tons in 2022-2023 to 285,085 tons by 2030-2031. These findings provide critical insights for policymakers aiming to enhance food security and stabilize leafy vegetable markets amidst climate change for achieving sustainable development goals (SDG) 12.

A Comparative Analysis of Butter, Ghee, and Margarine and Its Implications for Healthier Fat and Oil Group Choices: SWOT Analysis.

This study aims to comparatively analyze butter, ghee, and margarine fatty acid profiles and their implications for healthier fat and oil group choices. In this cross-sectional study, 60 samples from best-selling brands of butter, ghee, and margarine were randomly selected from five food chain stores in Tehran, Iran. Then, all the samples were coded, packed in cool conditions, and sent to the laboratory to determine the fatty acid profiles by using gas chromatography (GC). Based on the authors' experiences and the available literature, a policy dialogue session was held with stakeholders about oil and fat challenges, followed by a Strengths, Weaknesses, Opportunities, and Threats (SWOT) analysis. The mean ± SE of total fatty acids in butter, ghee, and margarine was 94.07 ± 0.17, 94.49 ± 0.61, and 99.00 ± 0.18; total saturated fatty acid (TSFA) 66.69 ± 0.39, 64.26 ± 0.63, and 40.36 ± 0.87; trans fatty acid (TFA) 2.43 ± 0.09, 3.60 ± 0.29, and 0.83 ± 0.15 g/100 gfat, respectively. The predominant TFAs in butter and ghee were vaccenic acid (animal source) (2.06 ± 0.07 and 2.41 ± 0.17), while in margarine, it was elaidic acid (plant-based source) (0.32 ± 0.12 g/100 gfat), respectively. Also, the SWOT findings showed being TFAs in the acceptable range (as the main strength), mismanagement (Weakness), reducing taxes based on lower TFA content (Opportunity), and sanctions (as the main Threat) were the most important criteria affecting fat choices in the Iranian food basket. The results of the study found that butter, ghee, and margarine contain relatively low levels of TFAs; however, butter and ghee were rich in beneficial fatty acids, which have been shown to have health-protective properties. Policymakers can implicate the proposed strategies and opportunities from the SWOT analysis for healthier fat and oil choices to promote public health.

Burden of selenium deficiency and cost-effectiveness of selenium agronomic biofortification of staple cereals in Ethiopia.

Selenium (Se) deficiency among populations in Ethiopia is consistent with low concentrations of Se in soil and crops that could be addressed partly by Se-enriched fertilisers. This study examines the disease burden of Se deficiency in Ethiopia and evaluates the cost-effectiveness of Se agronomic biofortification. A disability-adjusted life years (DALY) framework was used, considering goiter, anaemia, and cognitive dysfunction among children and women. The potential efficiency of Se agronomic biofortification was calculated from baseline crop composition and response to Se fertilisers based on an application of 10 g/ha Se fertiliser under optimistic and pessimistic scenarios. The calculated cost per DALY was compared against gross domestic product (GDP; below 1-3 times national GDP) to consider as a cost-effective intervention. The existing national food basket supplies a total of 28·2 µg of Se for adults and 11·3 µg of Se for children, where the risk of inadequate dietary Se reaches 99·1 %-100 %. Cereals account for 61 % of the dietary Se supply. Human Se deficiency contributes to 0·164 million DALYs among children and women. Hence, 52 %, 43 %, and 5 % of the DALYs lost are attributed to anaemia, goiter, and cognitive dysfunction, respectively. Application of Se fertilisers to soils could avert an estimated 21·2-67·1 %, 26·6-67·5 % and 19·9-66·1 % of DALY via maize, teff and wheat at a cost of US$129·6-226·0, US$149·6-209·1 and US$99·3-181·6, respectively. Soil Se fertilisation of cereals could therefore be a cost-effective strategy to help alleviate Se deficiency in Ethiopia, with precedents in Finland.

Dietary changes during the COVID-19 lockdown in Iranian households: are we witnessing a secular trend? A narrative review.

The COVID-19 pandemic, which emerged in late 2019, influenced nearly all aspects of human life, including food choices and dietary habits. A web-based search was conducted from March to April 2024 in MEDLINE/PubMed, CINAHL, Embase, and the Cochrane Library for published reports of large-scale surveys of dietary changes during or shortly after the coronavirus pandemic lockdown in Iran. The keywords used were coronavirus OR COVID-19, diet OR nutrition, household, and Iran. Studies that focused on specific areas, subgroups (such as students), or just one city or province were not included. To monitor dietary changes from the years before the lockdown, we used and plotted data from the Household Income and Expenditure Survey (HIES), as provided by the Statistical Center of Iran. The overall results of the nationwide studies conducted during the lockdown period in Iran revealed that a significant proportion of the households reduced their consumption of milk, yogurt, cheese, red meat, white meat, eggs, and rice/bread. In approximately 47% of the households where weekly consumption of animal protein sources decreased, the consumption of rice and bread increased. Accordingly, 35 and 44% of households reported a decrease in the consumption frequency of fruits and snacks, respectively. Additionally, 21% of those who reduced their fruit consumption completely removed fruits from their food basket. Meanwhile, the use of dietary supplements, especially vitamin D, vitamin C, zinc, and multivitamins, had increased in households, particularly among those with higher incomes. Decreased income was a common reason for all of these dietary changes, which can have major health consequences in the long term. This review provides evidence that the observed changes had already begun years before the pandemic and presumably have not yet returned to the pre-pandemic situation. Finally, we suggest some strategies for policymakers to overcome the crisis and enhance community the nutrition and health of general population.

Disclosure of mandatory and voluntary nutrition labelling information across major online food retailers in the USA.

Nutrition labelling is mandatory on food products in retail stores, but compliance in the rapidly expanding online setting remains unclear. We assessed mandatory and voluntary labelling information across major U.S. online retailers. Between January and August 2022, we evaluated a representative basket of sixty food and beverage items across eight product categories of ten major retailers. We evaluated online presence, accessibility and legibility of four mandatory elements - Nutrition Facts, ingredients, allergen statements and percent juice for fruit drinks - and presence of seven voluntary elements - nutrient content claims, health/qualified health claims, ingredient claims, structure-function claims, additive claims, front-of-package nutrient profiling symbols and other marketing claims. Major online food retailers in the USA. N/A. On average, each mandatory element was present, accessible and legible for only 35·1 % of items, varying modestly by element (from 38·3 % for ingredients lists to 31·5 % for Nutrition Facts) but widely by retailer (6·6-86·3 %). Voluntary elements were present for 45·8 % of items, ranging from 83·7 % for marketing claims to 2·0 % for structure-function claims. Findings were generally consistent across the eight product categories. Voluntary elements were more frequently present than accessible and legible mandatory elements for six of ten retailers and seven of eight product categories. Mandatory nutrition label elements are not commonly present, accessible and legible in online retail settings and are less consistently present than marketing elements. Coordinated industry and regulatory actions may be needed to ensure consumers can access mandatory nutrition information to make healthy and safe food choices online.

Estimation of radiological health risks due to 226Ra, 232Th, and 40K in foods consumed in Iraqi Kurdistan Region

ABSTRACT This study investigates the activity concentration of natural radionuclides in a diverse range of food samples in the Koya district markets food baskets, including both domestic and imported products. The samples cover annual crops (e.g. coffee, tea, kidney beans), tree nuts (e.g. almonds, pistachios), and other items (e.g. beef, fish, milk) by using a high-purity germanium (HPGe) detector. This research addresses a notable gap by providing baseline data on radionuclide concentrations and assessing potential health risks. Average activity concentrations for ²²⁶Ra, ²³²Th, and ⁴⁰K were 0.943, 0.367, and 191.8 Bq kg−1, respectively. Radium equivalent activity values ranged from 2.88–58.48 Bq kg−1, all below the safety limit. The average excess lifetime cancer risk (ELCR) was 0.154 mSv a−1, indicating safety for most samples, though coffee and tea showed higher levels. This study provides new data crucial for future research and regulatory monitoring, underscoring the need for further investigation into geological impacts on radionuclide levels.

Against the Grain: Consumer’s Purchase Habits and Satisfaction with Gluten-Free Product Offerings in European Food Retail

Across the world and within Europe, a growing number of consumers are choosing to buy gluten-free products. Motivations for a gluten-free diet and the consequences of consuming gluten are varied, from a medical necessity for those diagnosed with celiac disease to a range of health complications and discomfort for those who are gluten-intolerant. In this research, 7296 gluten-free consumers across 13 European countries responded to an online survey on the 33 types of gluten-free products purchased, how frequently they purchased them, their satisfaction with gluten-free quality and availability, the problems they have experienced, and the strategies they have employed to cope with these problems. The investigation examines whether and how these consumer attitudes and behaviors differ between those diagnosed with celiac disease, those who are gluten-intolerant, and those who are caregivers for others with a gluten-free diet. The results show that significant differences existed for all these habits and issues across the three gluten-free consumer groups. Specifically, caregivers purchased most of the gluten-free product types more frequently than the other two groups, experienced more availability problems, and were more likely to shop at multiple stores or make their own gluten-free products. Celiac-diagnosed consumers tended to buy gluten-free products more frequently than those who are gluten-intolerant, and they tended to be the most satisfied with the quality and range of gluten-free offerings. Despite purchasing frequency differences between the groups, the results suggest a similar hierarchy of gluten-free products that could provide the foundation for a European gluten-free food basket.

Moderators of the Effect of Household Food Insecurity on Food Consumption Among Uruguayan Children and Adolescents

The aims of the present work were to examine the effect of food insecurity on food consumption among children/adolescents in Uruguay and to explore the moderating effect of socio-economic and demographic characteristics. The design consisted of an analysis of secondary data from a telephone survey ( n = 1,504), applied to parents or tutors of children and adolescents living in Uruguay (September–October, 2020). Data were analyzed using logistic regression models and moderation analyses were run considering household socioeconomic and demographic characteristics. Food insecurity reduced the likelihood of having consumed all food groups except for carbohydrate-based foods, whereas it increased the likelihood of consuming pulses. Age of the child/adolescent, being beneficiary of income transfers and state-provided food baskets significantly moderated the effect of food insecurity on the consumption of several food groups. Results suggest that a combination of cash transfers, subsidies and marketing restrictions hold potential to reduce food insecurity and its negative effects on diet.

Milk and dairy products market: creation of dairy clusters

In modern conditions, public health as a strategic resource is one of the most important indicators that determine the level and quality of life, and is ensured by saturating the market with high-quality food products with high consumer properties. The authors have studied the current state of production of milk and its processed products, which are in the second place in demand after bakery products. In each region of the republic there are processing enterprises of the dairy industry, but not all producers supply goods of high quality. Purpose - development of practical recommendations to provide the domestic market with high-grade and competitive dairy products on the basis of formation and development of dairy clusters. Methods - the system approach was used to determine the value chain from raw materials to finished products, statistical and comparative analysis - to study the dynamics, state, potential opportunities of the dairy subcomplex, economic entities, generalization method - to summarize the results of the study. Results - the main problems existing in the dairy industry of Kazakhstan are revealed: insufficiency of milk for food products, underutilization of production capacities, lack of large farms producing conditioned raw materials in the required volumes, high import dependence, purchase prices for raw milk. Conclusions - the authors recommend the formation of territorial dairy cluster structures. The implementation of this direction will allow to meet the needs not only of the domestic market, but also to achieve a high export potential of the dairy industry, to solve the issues of supply of necessary equipment, fodder for livestock, to increase the competitive advantages of dairy products, the level of utilization of the existing production potential, as well as to expand the raw material base. Of particular importance is the study of promising areas of the dairy industry, since milk and dairy products are necessarily present in the food basket of every family.

SOCIO-ECONOMIC REQUIREMENTS AND PRINCIPLES OF ENSURING FOOD SECURITY IN UKRAINE

Ensuring the country's food security is a complex and responsible task, the solution of which is determined by a combination of many factors and factors. Socio-economic factors that determine the level of physical and economic availability of food for the country's population are decisive among these factors. The article examines the main socio-economic factors that influence the sufficiency and availability of food for the population of Ukraine. Among the most important of them, the value of the minimum food basket of Ukrainians, food prices, incomes and expenses of the population, and price trends in the food market were analyzed. A quantitative assessment of rates of the ratio of the cost of a food set and the average wage in Ukraine, which determines the economic availability of food for the population, was carried out. The structure of household expenses is analyzed. The obtained research results showed threatening trends in the growth of the share of population expenditure on food in the structure of spending to the maximum critical value. The price trends for food products and their changes in recent years have been studied. The income level of the population of Ukraine, the actual wages, and their combined effect on the availability and state of food supply are analyzed. An analytical assessment of the current state and dynamics of the level of food self-sufficiency of the population of Ukraine by its main types was carried out. Specific threatening trends have been identified regarding the sufficiency of domestic production of certain food products for food security (fruits, berries, and grapes are characterized. A set of fundamental principles are substantiated, which, according to the authors, become a priority in ensuring the strategic food security of Ukraine based on sustainable development. Priority among them are highlighted: priorities of food quality, safety, and environmental friendliness, formation of sustainable food security networks based on the creation of inclusive agro-food markets, increasing the level of social responsibility of food producers and food consumers, strategic priorities of environmental friendliness, conservation of natural and biological resources and minimization of climate change. Certain aspects of the quality and safety of agricultural production and food products were investigated in the context of the prohibited principles. The organizational principles of food quality and safety monitoring processes in the Ukrainian agro-food sector have been studied.

A Preference-Oriented Multi-Criteria Decision Model for Stunting-Prevention Food Basket Ranking using AHP-TOPSIS

It is necessary to give concentrated attention to the issue of stunting by implementing appropriate nutrition initiatives to prevent stunted physical and mental development. Optimal food availability is one effective strategy for preventing it. However, it often disregards preferences that guarantee pleasure, dietary diversity, and compatibility with individual tastes. In this paper, we show a two-step multi-criteria decision model. The AHP is used to figure out the criteria weights, and the TOPSIS method ranks food basket options based on how close they are to the ideal solution. The efficacy of our strategy was subsequently evaluated in Balikpapan, a prominent urban center in Indonesia grappling with the issue of stunting. The evaluation's findings were as follows: nutritional value (27%) was the most significant factor, knowledge of the food ingredients (18%), variety of foods made from the food ingredients (17%), ease of preparation, cooking, and storage (15%), cost (12%), and child preference (11%). The findings indicated that food basket 3, priced at Rp209,857 and yielding 1,854.96 kcal, consisted of rice weighing 3.63 kg, duck egg weighing 1.16 kg, milkfish weighing 0.65 kg, tuna weighing 0.06 kg, cauliflower weighing 0.17 kg, kale weighing 3.46 kg, and dragon fruit weighing 1.87 kg. In addition to nutrition and cost, this study highlights that considering preferences can enhance the appeal of food baskets.

A tree-based approach to identify indispensable foods in minimum-cost food baskets.

Optimization techniques, such as linear programming, can be used to estimate the minimum cost of a nutrient-adequate food basket, to determine if individuals or households can afford nutritious diets. These cost estimates typically account for seasonal fluctuations but often overlook significant disruptions in the availability of affordable nutritious food that can severely impact food and nutrition security. This paper proposes a tree-based method, the binary search tree, to assess the resilience of the cost estimate of the minimum-cost food basket. In particular, this method aims to identify indispensable foods in these baskets - those whose unavailability would lead to a substantial cost increase. The binary search tree operates by iteratively excluding essential food items while ensuring the construction of minimum-cost nutritious baskets. It considers all relevant combinations of foods up to a specified size and avoids unnecessary optimizations, thereby saving computation time. We describe how the resulting tree can be evaluated and condensed to capture only the necessary information for decision makers. The construction and evaluation of the binary search tree are independent of the (dietary) restrictions or type of optimization model (i.e., linear, non-linear or integer) included. In general, the binary search tree can identify all (combinations of) foods whose exclusion leads to a significant cost increase of a nutritious food basket. Furthermore, it can detect possible substitute effects between foods and identify key limiting nutrients. A case study is presented in which the binary search tree is applied to data from Ebonyi, Nigeria, modeled using linear programming. We report all combinations of up to five foods that, when unavailable, can impact food and nutrition security in Ebonyi. The BST can provide insights into local food and nutrition security when facing drastic disruptions in access to nutritious foods by identifying indispensable foods. Its results can be used to inform and design interventions in the context of humanitarian operations.

Increasing exposure of global croplands productivity to growing season heatwaves under climate warming

Abstract Growing season heatwaves that occur simultaneously over global croplands can negatively impact global food baskets. The long-term changes of growing season heatwaves, as well as their impacts on croplands productivity, are crucial to food security, but remain unclear. Here, we investigated changes in the frequency, intensity and magnitude of growing season heatwaves from the past to the future over the global croplands, based on observations and Coupled Model Intercomparison Project Phase 6 models. We introduced an index, gross primary productivity (GPP) exposure, as a proxy of the overall impact of heatwaves on cropland productivity. The results show that the frequency and intensity of growing season heatwaves have increased since 1950 and will continue throughout the 21st century. The increase of the annual accumulated magnitude of growing season heatwaves in the future is mainly contributed by the increase of heatwave frequency. This leads to a global-scale increase in the GPP exposure to growing season heatwaves, with Asia, North America, and Europe being the most affected. The continued increase in GPP exposure is dominated by increases in heatwaves rather than GPP itself. Under the lower emission scenario SSP1-2.6, the global cropland GPP exposure will reduce by 86.11% and 330.47% relative to that under SSP2-4.5 and SSP5-8.5 scenarios, respectively, by the end of 21st century. Our results provide crucial insights into potential impacts of heatwaves on cropland productivity and hence food security.

Regarding the influence of national factors on the biotic component of the enterprise's material backpack formation

Relevance of research. Sustainable Development Goal No. 12 refers to reducing the resource intensity of the economy by reducing the costs of material input in production chains. The famous German scientist Friedrich Schmidt-Blick proposed the concept of an ecological backpack as a characteristic of hidden material flows accompanying the entire life cycle of a product. A separate component of the backpack is the biotic part, which was heavy enough when, for example, horse traction was used in old mines. Food self-satisfaction of the staff based on the salary led to the fact that the consumption of food in the production process remained outside the analysis of the company's material flows. The purpose of the study is to prove/refute the validity of the hypothesis regarding the significant dependence of the biotic component of the material backpack on national traditions and the material income of workers of industrial enterprises. Research methods: mathematical statistics. The basis of research is long-term observation of food consumption in Ukraine and abroad, in particular, Poland and China. Main results. In the course of research, certain traditions characteristic of Ukrainian realities were revealed: consumption of food products by the average Ukrainian with a probability of 0.95 is 58.75±0.04 kg per month (698±0.5 kg per year); the structure of the consumer basket in Ukraine contains 33% – milk and dairy products, 15% – vegetables; 14% – bakery products and cereals, 11% – potatoes, 8% – meat and meat products; the average person in Ukraine consumes more food than recommended by the Ministry of Health of Ukraine (by approximately 5%); residents of rural areas consume more food than urban residents (by almost 6% – 57.9 kg per month versus 54.7 kg). It has been statistically proven that the annual volume of food consumption by residents of Ukraine (689 kg) is significantly greater than that of residents of Poland (456 kg) and, even more so, China (413 kg). National differences concerning food preferences have been revealed. Quantitative differences in the national consumption of food products by producers determine the different content of the material backpack of industrial products, which provides certain competitive advantages/disadvantages to the subjects of international market activity. In addition to the national traditions of food consumption, there are laws that determine the influence of the average per capita household equivalent total income on the weight of the food basket. On the basis of official statistical data, a mathematical dependence of the logarithmic form of the amount of food consumption on the average per capita income of a household member is proposed.

Is the Behavioural Gender Gap Decreasing? Evidence from Food Consumption in Swiss Single-Person Households.

While Switzerland has made some progress over the past few decades in treating men and women more equally, this study intends to find out whether Swiss men and women's food consumption patterns also converged between 1990 and 2017. After analysing 1.8 million observations of one-member households' food baskets, we found that gender gaps are increasing significantly for 16 of 70 studied foods, decreasing significantly for another 16 of 70 studied foods and not changing significantly for more than half of the studied foods. On average, the gender gap in food consumption in Switzerland has increased over time. We conclude that behavioural differences between genders and culturally induced gender differences (e.g., unequal career chances) are largely unrelated.