Carotenoides são considerados substâncias bioativas e seu consumo tem sido associado à prevenção de doenças crônicas não transmissíveis. Os carotenoides com atividade pró-vitamínica atuam no combate à hipovitaminose A. O objetivo desta dissertação foi descrever a ingestão de carotenoides, destacando a contribuição do consumo fora do domicílio, de acordo com fatores socioeconômicos, demográficos e estado nutricional, além de identificar as principais fontes alimentares presentes na dieta da população brasileira. Utilizou-se como base de dados as informações integrantes do bloco de consumo alimentar pessoal, da Pesquisa de Orçamentos Familiares (POF 2008-2009), realizada pelo Instituto Brasileiro de Geografia e Estatística (IBGE), que envolveu 34.003 indivíduos com idade de 10 anos ou mais. Um banco de dados foi construído para viabilizar o cálculo das quantidades (médias) de carotenoides presentes na dieta dos participantes da amostra. Foram utilizadas principalmente informações contidas na base Nutrient Database for Standard Reference Release 23 - United States Department of Agriculture (USDA) e a Tabela Brasileira de Composição de Carotenoides em Alimentos. Foram elaboradas análises estatísticas descritivas envolvendo o cálculo de ingestão de carotenoides no domicílio e fora dele e as variáveis selecionadas. O consumo médio per capita foi de 4.117,0 µg/dia para carotenoides totais e 2.337,9 µg/dia para os pró-vitamínicos A. As maiores médias de ingestão de carotenoides (totais; pró-vitamínicos) foram identificadas entre os seguintes grupos: mulheres (4.245,8 µg/dia; 2.458,9 µg/dia), moradores do meio urbano (4.143,2 µg/dia; 2.364,20 µg/dia), habitantes da Região Sul (4.987,6 µg/dia; 2.948,9 µg/dia), idosos (4.694,3 µg/dia; 2.853,8 µg/dia), indivíduos com os maiores rendimentos (5.596,7 µg/dia; 3.236,6 µg/dia), com curso de pós-graduação completo (7.009,7 µg/dia; 4.143,5 µg/dia), de cor amarela (5.692,7 µg/dia; 3.436,9 µg/dia) e aqueles classificados com os maiores Índice de Massa Corporal - IMC (4.445,1 µg/dia; 2.535,0 µg/dia). Constatou-se que a contribuição fora do domicílio representou até ¼ da ingestão total de carotenoides. Observou-se que os indivíduos do sexo feminino, idade acima de 60 anos e obesos, embora ingerissem maiores quantidades destas substâncias, integraram os grupamentos que (em relação ao total) apresentaram menor participação na ingestão fora do domicílio. O crescimento da renda e da escolaridade foi fundamental para proporcionar níveis mais elevados de consumo. As principais fontes de carotenoides na dieta da população brasileira foram: salada, suco, alface, tomate, mamão, melancia, abóbora, batata-doce, cenoura, milho verde e ovo de galinha. Fora do domicílio prevaleceu a ingestão dos três primeiros alimentos/preparações. Os níveis de ingestão revelaram-se expressivamente inferiores aos preconizados como seguros. Medidas de incentivo ao consumo de frutas, verduras, legumes e seus derivados (fontes de carotenoides), sobretudo entre os jovens, são necessárias e prioritárias, especialmente com vistas à prevenção de doenças crônicas não transmissíveis e no combate à hipovitaminose A. / Carotenoids are considered bioactive substances and its consumption has been associated to prevention of chronic non communicable diseases. The carotenoids with pro-vitamin activity act against hypovitaminosis A. The aim of this dissertation was to report the carotenoids intake, highlighting the contribution of outof- home food consumption, accordingly with socioeconomic and demographical factors, nutritional status, also to identify the main food sources in the diet of Brazilian population. A secondary data from the 2008-2009 Household Budget Survey - POF - was used, published by the Brazilian Institute of Geography and Statistics (IBGE). The sample consisted of 34,003 study subjects (13,569 households), with at least 10 years-old. A database was built to allow the calculation of quantities (average) of carotenoids in the diet of study participants. Information was used primarily by the Nutrient Database for Standard Reference Release 23 - United States Department of Agriculture (USDA) and the Brazilian Table of Carotenoids Composition in Food. Descriptive statistical analysis was performed for calculation of carotenoid intake at home and out-of-home consumption. The average daily consumption per capita was 4,117.0 µg/day for total carotenoids and 2,337.9 µg/day for provitamin A carotenoids. The highest average intake of carotenoids (total; provitaminic) was found between the following groups: women (4,245.8 µg/day; 2,458.9 µg/day), urban dwellers (4,143.2 µg/day; 2,364.20 µg/day), South region population (4,987.6 µg/day; 2,948.9 µg/day), elderly people (4,694.3 µg/day; 2,853.8 µg/day), high-income individuals (5,596.7 µg/day; 3,236.6 µg/day), with full graduate degree (7,009.7 µg/day; 4,143.5 µg/day), yellow skinned person (5,692.7 µg/day; 3,436.9 µg/day) and those classified with highest Body Mass Index (BMI) (4,445.1 µg/day; 2,535.0 µg/day). The out-ofhome contribution found in this present study represented up to ¼ of the total intake of carotenoids. It was observed that individuals over 60 years, female and obese people, although ingested larger amount of these substances, belonged to the groups (in relation with total) which showed less interest in out-of-home eating. The increase in income and education was essential to provide higher levels of consumption. The main dietary carotenoids sources of Brazilian population were: salad, juice, lettuce, tomato, papaya, watermelon, pumpkin, sweet potato, carrot, corn and chicken egg. The consumption of first three food/preparation prevailed outside the home. The intake levels showed expressively lower than those recommended as safe. Policies to promote the consumption of fruits, vegetables and derived products (carotenoids sources) are necessary and priority, particularly among young people, especially aiming to prevent the risk of chronic diseases and combating hypovitaminosis A.

China's economic success has helped it become one of the largest markets in the world. As a result, the demand for agricultural commodities in China has experienced a significant increase. Increasingly affluent Chinese people are paying increasing attention to food safety and quality instead of just quantity. Understanding how meat demands and prices are related to food safety and quality in Beijing will provide guidance for industry and policymakers interested in the Chinese meat market. The purpose of this study is to develop two models to analyze meat demand and prices associated with food safety and quality respectively. First, An Almost Ideal Demand System (AIDS) is used to investigate the effects of food safety on meat consumption. To address the potential bias of zero consumption in the estimation procedures, a simulated maximum likelihood (SML) estimation is applied in the regression. Second, we analyze the implicit price of meat with the intrinsic and extrinsic attributes using a hedonic price model. Five meat categories are regressed on several intrinsic and extrinsic attributes in the model using household survey data collected in Beijing in 2007. The key results of this research have two major outcomes. First, food safety has a significant and positive influence on meat consumption for Beijing residents. Second, the quality-related attributes or characteristics such as meat appearance, supermarket, meat brand, and processed meat as well as demographic variables such as household head's income have a significantly positive influence on the price of meat, which suggest that the consumers in Beijing are willing to pay a price premium to guarantee the quality and safety of meat.

DEd (Curriculum Studies) / College students in Zimbabwe were facing many challenges in adopting proper dietary patterns which promote learning. This study sought to establish the impact of Socio-Economic factors and dietary patterns in particular on the academic performance of college students in Zimbabwe. The study established challenges that were faced by college students in making choices of dietary patterns that promote learning. Factors that influence choice of dietary patterns for college students were established in this study. The case study was Joshua Mqabuko Nkomo Polytechnic College in Zimbabwe with a population of 206 students and a sample of 102 participants was purposively selected. A mixed-methods research, using quantitative and qualitative approaches was employed and questionnaires, interviews, observation and document analysis were used to collect data. Findings are presented from both questionnaire and interview data in combination, with interview data playing the role of supplementing quantitative findings and probing detailed information. Quantitative data was analysed using the IBM SPSS Version 23.0 while qualitative data was coded into themes and synthesised into quantitative data to support or refute quantitative data. Research indicates that diet quality and overall health status of college students are among the prominent factors which contribute to poor student academic performance worldwide. The experiences and perceptions held by the college students and cooks were investigated. The main study findings showed that if students follow proper dietary patterns they may perform well in their studies since relationship between nutrition and academic work lies on the notion that a healthy body is able to maintain a healthy mind, which suggests that certain risk factors for a physically ill-health are also risk factors for cognitive impairment. This study made recommendations for dietary patterns that promote learning in academic domains. It also developed a model valuable for dietary patterns. / `

MRDV / Institute for Rural Development / Food and nutritional insecurity, poverty and hunger are some of the 21st -century challenges baffling most developing economies. Worldwide, 1.2 billion people are estimated to be living in poverty. Since 1990, the number of people living in extreme poverty has increased by over 50 million in 2014. Among the many public and private institutions that have made several gritty efforts to address the poverty challenge is the Heifer international through its Heifer International Pass on Programme (HIPP). Under the HIPP, the Pass on the Gift programme has been implemented in Ward 1 of Mberengwa District for over two decades targeting the food and nutritional insecure, hungry and poverty-stricken people who are given a gift in form of cattle, goats, chicken etc. This was done with the belief that the gift will add value to their asset base and serve as stepping stone out of poverty, food and nutrition insecurity. Various reports have been written on how the programme helped in improving household livelihood. However, the voice of the beneficiaries was not being heard. This study explored how the Pass-on-the-Gift programme influenced the household‘s livelihoods in Ward 1, Mberengwa District of Zimbabwe. A multi-stage integrated approach was employed. Both the case study and a cross-sectional survey designs were employed. Two sequentially integrated phases were followed. On the first phase, a case study was used to gather data from the Heifer International Pass on Programme beneficiaries and other key stakeholders. During this stage, data were collected using a semistructured interview guide. Results obtained from the first phase informed formulation of the questionnaire used in the second phase. Respondents were purposefully sampled in both stages. Data obtained through semi-structured interviews were analyzed using Atlas ti 8 software while that from a survey was analyzed using IBM SPPS version 25 software to generate descriptive statistics and inferential statistics components. Results from the first phase of data collection were triangulated with those from the second phase. This synchronized the two data sets and allowed subsequent discussion of the results. The research findings revealed that the HIPP influenced all the households of the participating farmers financially, socially and economically where p= 0.000. Thus, the study confirmed that the notion that cattle ownership can be used as an avenue of confronting the multi-dimensional rural development challenges. Furthermore, it was revealed that cattle ownership empowers the rural smallholder farmers and has potential to assist households dismantle the perpetual dependency on external support, improve their livelihoods and contribute to sustainable development goals. / NRF

Production, processing, transport and consumption of food form a significant part of the environmental burden. Organic farming and organic food production represent for many experts, policymakers and for a part of lay public a way to reduce the environmental burden. The volume of organic food production hinges on, among others, the willingness of consumers to prefer organic food to conventional food and also to change consumer behaviour. Although organic food consumer and purchase behaviour is sometimes found to be environmentally motivated, health motives are prevailing in many developed countries. Recently, organic food consumption has grown significantly in developed countries. The diploma thesis is for these reasons aimed at analysis of motivational factors and barriers that affect consumer's purchase decision-making related to organic food. First, the overview of scientific literature concerning organic food consumption behaviour is presented. Factors that explain it can be divided into four major types: attitudinal variables, contextual forces, personal capabilities and habits. In the diploma thesis, we focus on risk perception, which can be classified as the attitudinal variable. Considering the perception of health and environmental risks, it is important to point out that manufactured...

I denna rapport undersöks på vilka sätt Stockholms stad försöker minska invånarnas klimatpåverkan när det gäller konsumtion av mat och transporter. Med utgångspunkt i teorierna om ekologisk modernisering (EM) och ecological citizenship (EC) studeras Stockholms stads dokument och planer för klimatarbete. Vad gäller transporter så genomför Stockholms stad åtgärder för att minska biltrafiken och användningen av fossila bränslen, effektivisera godstrafiken samt öka cykel, gång och kollektivtrafik. Det finns betydligt färre åtgärder som rör livsmedel. De som finns är informativa styrmedel riktade till privatpersoner och företag med tips på hur klimatpåverkan från mat kan minskas, till exempel genom att äta mindre kött. Sammantaget har Stockholms stads åtgärder ett mer lokalt än globalt fokus, åtgärderna bygger mer på innovationer än beteendeförändringar. Den uttalade anledningen för förändring handlar om god livskvalitet i Stockholm snarare än global rättvisa. Detta leder till slutsatsen att Stockholms stads klimatarbete präglas av EM i betydligt större utsträckning än EC. Detta är inte oväntat eftersom EM länge varit dominerande i den miljöpolitiska debatten. EM har fått mycket kritik för att sakna globalt perspektiv, därför kan dess effektivitet för att lösa globala problem ifrågasättas.

This qualitative study aims to identify challenges experienced amongst consumers in Stockholm when transitioning to a vegan diet. Five consumers between the ages of 24-27 have during a period of one month assumed the task of transitioning to a vegan diet. The results were analyzed through the lens of The Multidisciplinary Model of the main factors affecting consumer behaviour in the food domain and as well as the Cognitive dissonance theory to enable a deeper analysis. The study shows that information, supply and psychological influences are three main areas in which barriers are present. Lack of marketing in store and online, lack of clear labeling on products and lack of supply in both stores and restaurants were the most apparent challenges experienced amongst consumers which can be barriers when transitioning to a vegan diet. Furthermore, psychological influences that were perceived as barriers by the consumers was the presence of dissonance and the feeling of lack of support and inspiration.

Background: Obesity and the accompanying increased morbidity and mortality risk is highly prevalent among older adults. As obese elderly might benefit from intentional weight reduction, it is necessary to determine associated and potentially modifiable factors on senior obesity. This cross-sectional study focuses on multi-morbid patients which make up the majority in primary care. It reports on the prevalence of senior obesity and its associations with lifestyle behaviors. Methods: A total of 3,189 non-demented, multi-morbid participants aged 65–85 years were recruited in primary care within the German MultiCare-study. Physical activity, smoking, alcohol consumption and quantity and quality of nutritional intake were classified as relevant lifestyle factors. Body Mass Index (BMI, general obesity) and waist circumference (WC, abdominal obesity) were used as outcome measures and regression analyses were conducted. Results: About one third of all patients were classified as obese according to BMI. The prevalence of abdominal obesity was 73.5%. Adjusted for socio-demographic variables and objective and subjective disease burden, participants with low physical activity had a 1.6 kg/m2 higher BMI as well as a higher WC (4.9 cm, p<0.001). Current smoking and high alcohol consumption were associated with a lower BMI and WC. In multivariate logistic regression, using elevated WC and BMI as categorical outcomes, the same pattern in lifestyle factors was observed. Only for WC, not current but former smoking was associated with a higher probability for elevated WC. Dietary intake in quantity and quality was not associated with BMI or WC in either model. Conclusions: Further research is needed to clarify if the huge prevalence discrepancy between BMI and WC also reflects a difference in obesity-related morbidity and mortality. Yet, age-specific thresholds for the BMI are needed likewise. Encouraging and promoting physical activity in older adults might a starting point for weight reduction efforts.

Food production and food consumption have been shown to have a great impact on our ecosystem. Human beings have been exploiting the planet in order to feed themselves. This will have negative consequences for future life on the planet. Modern food production and consumption are among the main causes of natural resource exploitation and the problem is very likely to increase. Indeed, during the past thirty years, the global population has grown exponentially by almost one billion every decade, and it is still growing at the same pace. This demographic explosion means that dramatic shifts in the production and consumption of food will be required. Working with food is a great chance to achieve or at least lead towards a condition of recovering, understanding the world around us and managing our natural resourcesÅ. Increasing control and efficiency in food production and consumption cannot solve the problem. There is a much broader spectrum of causes contributing to the ecological decline. It is necessary to look beyond the technological and economic aspects. It is, therefore, necessary to focus on cultural and behavioural causes, promoting the involvement of local peopleÇ. With this in mind, this research explores the potential of urban foraging for generating social consciousness about ecological sustainability using design as method of intervention, and involving food consumers in the process of production and consumption of food in a more sustainable way. In order to do that, this research focuses on a small scale urban foraging project. In this case, by food, I refer to spontaneous food that grow in the natural urban environment of Växjö, and that can be used as a resource for citizens. In summary, this research aims to promote the involvement of local people and to support knowledge exchange in order to pursue socio-ecological sustainability. Engaging with more participants, the research gains the capacity of addressing complexity in a more coherent manner, and use its outcome as a usable resource for the local community that aims to promote its self-sustenance.

Das derzeitige Lebensmittelsystem gilt als einer der Hauptverursacher zahlreicher globaler Probleme wie dem Klimawandel und dem Rückgang der Biodiversität. Bildung für nachhaltige Entwicklung (BNE), die eine nachhaltige Ernährung bei jungen Menschen fördert, kann wesentlich zur Überwindung dieser Probleme beitragen. Zudem stellt das Thema einer nachhaltige Ernährung einen in höchster Form geeigneten Beispielkontext für BNE dar, weil es so gut wie kaum ein anderes Thema die ökologische, soziale und ökonomische Dimension einer nachhaltigen Entwicklung in einem regional-globalen Bezugsrahmen vereint. Für die Entwicklung geeigneter Lehr-Lernarrangements sollten jedoch die Lernvoraussetzung bezüglich einer Bildung für nachhaltigen Ernährung berücksichtigt werden, welche sowohl die Präkonzepte zum Unterrichtsgegenstand als auch psychologische Faktoren umfassen, die nachhaltige Ernährungsabsichten und Ernährungsverhaltensweisen fördern. Aufgrund ihrer besonderen Bedeutung für die Ausführung umweltfreundlicher Verhaltensweisen, wie eine nachhaltige Ernährung, untersuchte die erste Studie die Mensch-Natur-Beziehung von 2173 deutschen (MAlter = 14,56 Jahre, SD = 1,45; weiblich: 55,1%) und 451 ecuadorianischen (MAlter = 14,63 Jahre, SD = 1,77; weiblich: 55,3%) Schüler*innen der Sekundarstufe. Im Speziellen wurde die Rolle ausgesuchter grundlegender menschlicher Werte, des Geschlechts und der in der Natur verbrachten Zeit für die Entwicklung von Naturverbundenheit und Umweltbetroffenheit in den zwei Kulturen beleuchtet. Die Ergebnisse zeigten, dass die ecuadorianischen Schüler*innen naturverbundener als Schüler*innen in Deutschland waren. Darüber hinaus wurden kulturspezifische Unterschiede hinsichtlich der dimensionalen Struktur von Umweltbetroffenheit sowie der Rolle des Geschlechts für die Entwicklung von Naturverbundenheit und biospherisch motivierte Umweltbetroffenheit ermittelt. Die Wertedimension Selbst-Überwindung sowie die in der Natur verbrachte Zeit stellten in beiden Kulturen Determinanten für Naturverbundenheit und biospherisch motivierte Umweltbetroffenheit dar. Mit Blick auf die unterrichtliche Praxis sprechen die Befunde der Studie dafür, dass die Wertedimension Selbst-Überwindung und Zeit in der Natur gefördert werden sollten, um die Mensch-Natur-Beziehung bei Schüler*innen sowohl in Ecuador als auch in Deutschland zu stärken. Die zweite Studie verfolgte das Ziel, Faktoren zu identifizieren, die nachhaltige Ernährungsabsichten und -verhalten bei Jugendlichen vorhersagen. Zu diesem Zweck wurden in einer zweiten quantitativen Studie 624 deutsche Schüler*innen der Sekundarstufe (MAlter = 16,63 Jahre; SD = 1,15; weiblich: 48,2%) hinsichtlich ihrer Intention, sich nachhaltig zu ernähren, zu ihren Ernährungsgewohnheiten (vegetarisch/vegan oder omnivor) und zu mehreren Faktoren befragt, die in früheren Studien im Zusammenhang mit umweltfreundlichen Verhaltensweisen standen. Die Studie identifizierte die wahrgenommene Konsument*inneneffektivität, biospherisch motivierte Umweltbetroffenheit sowie Wissen über nachhaltige Ernährung als Determinanten für die Intention sich nachhaltige zu ernähren und für die Ausführung einer vegetarischen Ernährungsweise, welche ein partielles Beispiel einer nachhaltigen Ernährung darstellt. Während Naturverbundenheit lediglich für die Erklärung von der Intention sich nachhaltige zu ernähren relevant war, sagte die dispositionelle Empathie gegenüber Tieren nur Vegetarismus vorher. Damit gibt die Studie wichtige Hinweise darauf, welche Faktoren bei der Entwicklung didaktischer Konzepte zur Förderung nachhaltiger Ernährungsweisen berücksichtigt werden sollten. Mittels semistrukturierten Einzelinterviews wurden in der dritten Studie die Vorstellungen von 46 deutsche Schüler*innen Sekundarstufe (MAlter = 15,59, SD = 0,78; weiblich = 47,8%;) bezüglich einer nachhaltigen Ernährung erhoben. Dabei wurde ermittelt, wie präsent die Dimensionen einer nachhaltigen Ernährung (Gesundheit, Umwelt, Wirtschaft, Gesellschaft und Kultur) in den Vorstellungen der Schüler*innen sind. Die Ergebnisse zeigten, dass die Schüler*innenvorstellungen bezüglich einer nachhaltigen Ernährung von der gesundheitlichen Dimension dominiert wurden. Je mehr Dimensionen die Schüler*innen jedoch in Ihren Vorstellungen berücksichtigten, desto weniger wurde die gesundheitliche Dimension fokussiert und desto stärker war die Dimension Umwelt in den Vorstellungen vertreten. Die Dimensionen Gesellschaft, Wirtschaft und besonders Kultur fanden insgesamt wenig Berücksichtigung in den Vorstellungen der Schüler*innen. Darüber hinaus verfügten einige Schüler*innen über alternative Vorstellungen bezüglich des Ausdrucks einer nachhaltigen Ernährung und konnten keine Beziehung zwischen einer nachhaltigen Ernährung und den Dimensionen Umwelt, Gesellschaft, Wirtschaft und Kultur herstellen, was auf eine vorherrschend egozentrische Sichtwiese auf Ernährung hindeutet, die die Grenzen des eigenen Körpers nicht überschritt. Da die Vorstellungen von Schüler*innen bezüglich einer nachhaltigen Ernährung, aber auch psychologische Faktoren, welche eine nachhaltige Ernährung begünstigen, wichtige Lernvoraussetzungen für eine Bildung für nachhaltige Ernährung darstellen, bilden die Ergebnisse die Grundlage für die erfolgreiche Entwicklung von Lehr-Lernarrangements zu dieser Thematik. Vorschläge zur Integration der Ergebnisse in die unterrichtliche Praxis werden gegeben.