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COLAÇO LOURENÇO VIEGAS, CLÁUDIA ALEXANDRA

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Now showing 1 - 10 of 17
  • Determinantes das escolhas alimentares infantis em restaurantes de fast-food
    Publication . Rocha, Ada; Viegas, Cláudia; Peixoto, Cláudia
    Nos últimos anos, verificou-se uma alteração no ritmo de vida da população, que se traduziu numa mudança dos hábitos de consumo, com um aumento do consumo de refeições fora de casa, incluindo pelas crianças. Na maioria das vezes, os locais escolhidos para realizar as refeições são os restaurantes de fast-food. Geralmente as refeições preparadas neste tipo de restaurantes, incluindo as refeições infantis, têm uma qualidade nutricional muito baixa. O comportamento das crianças em relação às suas escolhas alimentares, é afetado por vários determinantes de consumo, pelo que o principal objetivo deste estudo foi identificar os determinantes das escolhas alimentares infantis em restaurantes de fast-food. De forma a atingir este objetivo, foi elaborado um questionário, disponibilizado online dirigido a pais de crianças com idades compreendidas entre os 6 e os 12 anos. Observou-se que para as crianças, os fatores determinantes na escolha do restaurante de fast-food e da refeição consumida, foram, por ordem de importância: a oferta de um brinquedo colecionável/promocional, as opções disponíveis e o sabor agradável da refeição. Para os pais, os fatores mais relevantes no momento da escolha do restaurante de fast-food e da refeição infantil consumida, foram a conveniência do local, o preço acessível, o sabor agradável e as preocupações com a saúde, respetivamente. Os resultados deste estudo evidenciam a necessidade de reformular e desenvolver refeições infantis equilibradas sem comprometer a palatabilidade, associando a estas opções equilibradas a oferta de brindes colecionáveis.
  • Development of a tool to assess the compliance of cafeteria menus with the Mediterranean Diet
    Publication . Silva, S. S.; Rocha, A.; Ferreira, L.; Neto, Beatriz; Dikmen, D.; Filipec, S. Vidacek; Satalic, Z.; Viegas, Cláudia
    Background: The Mediterranean diet (MD) has been considered one of the healthiest dietary patterns, and an excellent model of sustainability. Higher Education food services present an excellent scenario to encourage students healthy eating habits and modulate food choices. The purpose of this work was to develop an index to evaluate MD compliance with cafeteria menus. Methods: Three major axes were considered: MD key points, existing indexes on individual adherence to the MD, and existing indexes on menu assessment. The index includes four levels: (I) assesses the availability (IA), variety, and frequency (IB) of food; (II) evaluates the menu's nutritional quality; (III) assesses the menu's quality through information provided in the dishes' technical specifications and (IV) allows a more detailed evaluation through on-site visits and documentation consultation. The components receive a score between - 2 and 3, according to the given answers. The final score may vary between - 33.5 and 41.5 points depending on the degree of compliance with the MD key points. The index was applied to 60 menus from different contexts using complete assessments of each menu, performed independently by 3 researchers, using the same pre-prepared Microsoft Excel® spreadsheet. Inter-rater reliability was assessed using Cohen's Kappa and internal consistency with Cronbach's alpha. Results: Assessment for level I) returned a Cohen's Kappa coefficient of 0.92 (p < 0.05) and a Cronbach's alpha coefficient of 0.88. Dimension I is mostly influenced by subdimension IB (r = 0,97). The availability of non-starchy vegetables and fresh fruits has a stronger correlation with IA (availability of foods), and the higher availability of fish, pulses, and fruit has a strong positive correlation with IB (variety and frequency of foods). Conclusion: Researchers believe that the index is a useful tool to assess compliance of menus to the MD and help identify the key points that need to be addressed and improved in cafeterias.
  • KIMEHS – Proposal of an index for qualitative evaluation of children’s menus: a pilot study
    Publication . Rocha, Ada; Viegas, Cláudia
    Considering the importance of the food environments for health promotion, and the lack of simple, easy-to-use, low-cost measures of the quality of meals, the authors developed a qualitative menu index (KIMEHS-Kids' Menu Healthy Score), tailored to children's menu evaluation. Development of the tool was based on the Mediterranean food pattern. It includes 18 components, divided into seven main groups that reflect key aspects of menu quality, including protein source, side dishes, vegetables, dessert and beverages, and also allergens and nutritional information. The index was analysed for content and construct validity, as well as inter-rater reliability, and was applied to a sample of menus from restaurants in shopping centres in the Lisbon region. Possible index point ranges from -17 to 17, with a higher score indicating greater compliance with the recommendations. A value of 5.5 is obtained if all KIMEHS items are available, considering healthy and non-healthy options. The inter-rater reliability was assessed and values above 0.80 were obtained for Alpha Cronbach, as well as agreement % rate >75%. Agreement percentage is above 75% for all the components. Evaluated restaurants scored from -14 to 7, with an average KIMEHS of -6.15. Only four restaurants scored positive values, ranging from 0.25 to 7. KIMEHS was considered to be an adequate index to evaluate children's menus, from the menu information displayed on restaurant websites and/or on restaurant displays or table menus. It is a simple, low-cost tool that may be used as a reference for health professionals as an objective measure to evaluate the food environment. Stakeholders could also be involved in their own assessment to help educate consumers about healthy food choices, strengthening the efforts to promote an adequate food pattern and health, contributing to the fight against obesity.
  • Examining the relationship between sugar content, packaging features, and food claims of breakfast cereals
    Publication . Prada, Marília; Saraiva, Magda; Viegas, Cláudia; Cavalheiro, Bernardo; Garrido, Margarida
    Excessive free-sugar intake has become highly prevalent in numerous countries, and Portugal is not the exception. One product category that contributes to the daily intake of free sugars is breakfast cereals. In the current work, we identified 289 exemplars from two major retailers in Portugal and collected information on their nutritional profile (e.g., sugar, salt, fiber per 100 g), price, packaging features, type of food claims present (e.g., statements about the composition, sensory features, the origin of the product), and ingredients list. Overall, the sugar content of breakfast cereals was high (Mean = 19.9 g), and less than 10% of the products complied with the current national guidelines (i.e., 5 g of sugar per 100 g of product). Sugar (or other sugar sources) was listed in the top three ingredients for over 85% of the products. On average, each product included about four claims (Mean = 3.9), and sugar content was lower when the claims were related to the product composition. Critically, the sugar content was particularly high for children-oriented products (Mean = 26.4 g). Correlation analysis showed that breakfast cereals with higher sugar content also were cheaper and had lower quantities of fiber, proteins, and salt. Our findings suggest the need to implement strategies to reduce sugar in this product category (e.g., incentivize manufacturers to reformulate products). Also, our results may inform strategies aimed at promoting consumers' awareness about the sugar content in breakfast cereals and other processed foods, facilitating healthier decision-making.
  • Assessment of food and cooking skills: validation of a Portuguese version of a tool and characterisation of food and cooking skills in young adults
    Publication . Costa, Vânia; Borrego, Rute; Mateus, Cátia; Carolino, Elisabete; Viegas, Cláudia
    ABSTRACT - Introduction: Food and cooking skills (FCSks) is defined as a complex, interrelated, and person-centered set of skills, necessary to provide and prepare safe, nutritious, and culturally acceptable meals for all members of the household. Recent studies have associated higher FCSk with healthier eating habits and better health. This study aimed to validate a Portuguese version of a tool to assess and describe FCSk in young adults. Methods: A cross-sectional study used an online anonymous questionnaire that was disseminated to students from three Portuguese Higher Education Institutes. The questionnaire validation included Cronbach alpha and confirmatory factor analysis (CFA). The Mann-Whitney test was used for evaluating sample differences and Pearson correlation for association among variables. Results: Internal consistency reliability was 0.89 for cooking skills (CSks) and 0.87 for food skills (FSks). A moderate positive correlation was found between CSks and FSks confidence (r = 0.658, p < 0.01). CFA presented a good adjustment model for most of the fit indices, indicating the adequacy of the questionnaire. The CSks score was 74.1 ± 21.2 (moderate) and the food Skills was 94.2 ± 20.8 (high). Cook pulses, steaming food, and planning meals ahead scored the lowest value while boiling or simmering food, chopping, peeling vegetables, and reading the best-before date scored the highest value. No difference was found among sex (pCSk = 0.576; pFSk = 0.158), age (pCSk = 0.566; pFSk = 0.130), body mass index classes (pCSk = 0.903; pFSk = 0.320), or course (pCSk = 0.169; pFSk = 0.126). The greatest interest in gastronomy and frequency of meal preparation is associated with higher FCSk (p < 0.05). Conclusion: This research validated a Portuguese version of a tool to assess FCSk among young adults. Internal consistency reliability was adequate. Confirmatory factor analysis returned good psychometric properties for the questionnaire. Authors identified lower FCSk competencies in cooking pulses and vegetables, which are healthy and sustainable foods. This may compromise the adoption of healthy eating behaviors, so promoting FCSk in young adults may pose a strategy for nutrition and public health in reducing diet-related diseases. This tool may be used to identify opportunities for intervention in public health nutrition.
  • Development of a tool to assess the compliance of canteen menus with the Mediterranean diet
    Publication . Neto, B.; Ferreira, L.; Rocha, Ada; Viegas, Cláudia
    The Mediterranean Diet (MD) is one of the healthiest food patterns associated with important health benefits. Acknowledging this, it’s important to understand how the dietary patterns of the consumers align with the MD. Over time, different authors have formulated several indexes for this purpose. However, current indexes lack standardization, and they only evaluate the quality of the diet of individuals to be used by health professionals and political decision-makers. Although there are indexes to assess the food options at the restaurants, none of them assess the menu compliance with the MD. Due to the importance of food services in the food choices and dietary patterns of the consumers, this research developed an index to assess the alignment of food availability with the MD key points. To address this gap, after reviewing the existing indexes in the literature, the authors created a tool that assesses the degree of compliance of menus with the MD - MedCIn. This index is divided into 4 dimensions, the first one assesses the availability (part A) and variety (part B) of the food/food groups. The second dimension assesses the nutritional quality of the menus based on the nutritional declaration, the third dimension assesses the food portions and culinary options, and the fourth dimension allows the verification of the previous information on site. Although the use of all dimensions allows for a more comprehensive menu evaluation, dimension one can be used as a first approach to MD compliance. The index is meant to be applied in a 4-week cycle, though it can be adapted for each food service. Validation of this tool included construct validity, internal consistency, and inter-rater reliability, all of which returned high values (alpha-Cronbach¼0.88; Cohens Kappa¼0.92). The researchers consider this a reliable tool to easily assess compliance of menus with MD key points, allowing for the identification of issues to be addressed and improved.
  • Nutritional profile and consumers’ perceptions of cereal bars
    Publication . Saraiva, Magda; Garrido, Margarida Vaz; Viegas, Cláudia; Prada, Marília
    The fast pace of our daily lives often prompts consumers to seek convenient and ready-to-eat snacks, such as cereal bars. This work aims to characterize the cereal bars available in the Portuguese market (Study 1), as well as consumers’ perceptions of different types of these products (Study 2). First, we collected data (e.g. nutritional information, price) on 277 cereal bars from two major Portuguese retailers. The results indicated that most of these products do not comply with the current guidelines for key nutrients like sugar, fat, and salt. Second, using an online survey, we asked participants (N = 373) to evaluate cereal bars from different categories (e.g. “energy/protein”) across eleven dimensions. Overall, the bars were rated as tasty but also unhealthy, highly caloric, processed, and unsuitable for athletes, children, and weight loss. Interestingly, participants overestimated the content of most nutrients contained in cereal bars. A content analysis revealed that participants indicated more reasons for not consuming (e.g. excessive sugar content) than consuming (e.g. convenience) these products. Given the increasing popularity of cereal bars, our findings call for action from multiple stakeholders toward improving cereal bars’ nutritional profile and advancing our understanding of consumers’ perceptions of these products to facilitate healthier choices.
  • PASS-IPL – Healthy and Sustainable Food Program in higher education institution
    Publication . Borrego, Rute; Costa, Vânia; Viegas, Cláudia; Mateus, Cária; Gouveia, Raquel; Carvalho, Patrícia
    The Healthy and Sustainable Food Program (PASS-IPL) is the result of a partnership between the Instituto Politécnico de Lisboa (IPL), the Social Services of the IPL (SAS-IPL), the Lisbon School of Health Technology (ESTeSL) and the Lisbon Students Federation of the IPL (FAIPL). Strategical axis: food and nutrition literacy; food availability/environment; and food waste.
  • Quality of kids’ meals in fast-food restaurants: the nutritional content is not enough for an informed choice
    Publication . Pinto, Daniela Costa; Viegas, Cláudia; Rocha, Ada
    Objective: Eating out in restaurants is a common family behavior, but it has been persistently associated with unbalanced nutrient intakes, contributing to create and reinforce unhealthy food habits among children. The purpose of this study was to evaluate the kids’ meals from three common well-known restaurant chains in Portugal. Methods: The nutritional composition (total fat, carbohydrates, protein, and sodium content) of the menus was analyzed bromatologicaly, and food portions were also examined. The assessment was carried out according to the European Food Safety Authority recommendations. Results: Analyses of the menus from the two points of view revealed that the evaluations for macronutrients and food portions may return contradictory results. Protein, carbohydrates, and fats are compliant with the requirements for most meals. The analysis from the food portion perspective exceeds the requirements for the meat, fish, and eggs groups, as well as for fats and oils. Fruits, vegetables, and pulses are not present in the menus. Despite the balance associated with the macronutrients, the salt content exceeds the recommendations for most of the meals. Conclusions: Popular fast-food chain restaurants have already adapted to comply with nutritional recommendations, whilst neglecting important recommended foods such as fruit, pulses, and vegetables. This study points not only to the need of investing in the improvement of the offerings but also to the importance of fighting the tendency to reduce the perception of food quality to its nutritional content, leading consumers to believe that the meals offered are balanced when they are not.
  • Design and (im)materiality: designing for a regenerative and socially ethical food system
    Publication . Duarte, Verónica; Félix, Maria João; Viegas, Cláudia; Borges, Miguel de Aboim
    Food systems are facing serious challenges in the social, economic, and environmental dimensions. This article aims to revitalise the role of design in the transition to a regenerative food system, adopting ethical principles. A literature review was carried out that crossed different themes, to stimulate reflection on the involvement of design in the food system. Next, four evolutionary stages were planned and presented, complemented by conceptual models that resulted from the research carried out and related to the different theoretical subjects, to generate new perspectives on the topic addressed. The effective contribution of this study lies in demonstrating that designers, together with other stakeholders, can design useful solutions and generate interdisciplinary knowledge related to the food system. Furthermore, it is understood that a greater contribution from social design and inclusive design is needed to address several of the problems of the food system, and, consequently, significant and mutually beneficial changes occur. The expected results focus on the need to carry out additional research to deepen the relationship between design and the food system, to minimise adverse impacts on the environment, human health, and future generations.