Vanessa Ferreira

Dr. Vanessa Ferreira


Research Focus & Metrics

Academic Career Length

22Years (2005-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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7 July 2020 in Foods
Verified
Journal Article
Open access
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Raquel P. F. GuinéRaquel P. F. Guiné
Raquel P. F. Guiné
Elena BartkieneElena Bartkiene
Elena Bartkiene
VSViktória Szűcs
Viktória Szűcs
Monica TarceaMonica Tarcea
Monica Tarcea
Marija LjubicicMarija Ljubicic
Marija Ljubicic
JDJoão Duarte
João Duarte
Many aspects linked to personal characteristics, society and culture constitute some of the motivators that drive food choice. The aim of this work was to determine in what extent the eating behaviors of individuals are shaped by six different types of determinants, namely: health, emotions, price and availability, society and culture, environment and politics, and marketing and commercials. This is a descriptive cross-sectional study, involving a non-probabilistic sample of 11,960 participants from 16 countries. The objective of this work was to validate the questionnaire, so as to make it suitable for application in different contexts and different countries. For that, six scales were considered for validation by confirmatory factor analysis with structural equation modelling. The obtained results showed that the six individual scales evaluated presented good or very good fitting indices, with saturation in goodness-of-fit index in all cases. The values of chi-square ratio were 6.921 (for health), 0.987 (environment), 0.610 (emotions) and 0.000 in the remaining cases (convenience, society, marketing). Furthermore, the fit was perfect, with saturation for all indices, in three of the six models (convenience, society and marketing). The results of this wok allowed the validation of the six scales, and the assessing of different types of factors that can influence food choices and eating behaviors, namely in the categories: health, emotions, price and availability, society and culture, environment and politics, and marketing and commercials.

1 July 2007 in Cadernos de Saude Publica
Verified
Journal Article
Open access
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VFVanessa Ferreira
Vanessa Ferreira
RMRosana Magalhães
Rosana Magalhães
A promoção da saúde tem ao longo dos últimos anos se apresentado como uma estratégia promissora para o campo da Saúde Pública. Este estudo propõe articular o tema da nutrição no debate contemporâneo da promoção da saúde, analisando o papel dos nutricionistas neste processo. Frente ao reconhecimento da complexidade do quadro alimentar brasileiro advindo da transição nutricional em curso no país, a proposta de promoção da saúde aponta perspectivas, mas também desafios ao campo da alimentação e nutrição. Em linhas gerais, novas exigências relacionadas à formação acadêmica e ao modelo de atenção tendem a fortalecer a busca de parcerias, inovação das práticas alimentares à educação nutricional voltada à construção da cidadania alimentar.

6 March 2021 in Sustainability
Verified
Journal Article
Open access
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Raquel P. F. GuinéRaquel P. F. Guiné
Raquel P. F. Guiné
Elena BartkieneElena Bartkiene
Elena Bartkiene
SFSofia G. Florença
Sofia G. Florença
Ilija DjekicIlija Djekic
Ilija Djekic
MČMaša Černelič-Bizjak
Maša Černelič-Bizjak
Ana Paula CardosoAna Paula Cardoso
Ana Paula Cardoso
This work intended to explore some motivations that influence people’s eating habits towards sustainability. This was an observational, cross-sectional study, carried out by questionnaire survey on a non-probabilistic sample of 10,067 participants from 13 countries (Argentina, Brazil, Croatia, Greece, Hungary, Latvia, Lithuania, Poland, Portugal, Serbia, Slovenia, Romania and United States). Results indicated that people prefer fresh local foods from the season, being important because it allows transportation and storage to be reduced, which in many cases implies refrigeration systems and consequent energy expenditure. Although people avoid food waste at home, the awareness for the waste at restaurants still needs to be improved. Consumers seem to prefer foods that have been produced and packed in sustainable ways but still give importance to the package—understandable for food products. The results also indicated significant differences in the food choice motivations between groups for all sociodemographic variables tested (age, sex, marital status, education, professional area, living environment and country), but the association was high only for variable country. Additionally, a tree classification analysis allowed to identify the relative importance of the influential variables on the sustainable food choices, with country being the most important, followed by age and sex. Additionally, discriminant function analysis allowed establishing a model for the relation between country and six variables accounting for preservation of biodiversity, respect for life, save natural resources, save energy, reduce industrial pollution and minimal packaging. Although with some limitations, this study brings valuable insight into some aspects linked with sustainable food choices on a number of countries and how people shape their food choices according to some sustainability issues.

4 September 2020 in Foods
Verified
Journal Article
Open access
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Ana Paula CardosoAna Paula Cardoso
Ana Paula Cardoso
VFVanessa Ferreira
Vanessa Ferreira
MLMarcela Leal
Marcela Leal
MFManuela Ferreira
Manuela Ferreira
SCSofia Campos
Sofia Campos
Raquel P. F. GuinéRaquel P. F. Guiné
Raquel P. F. Guiné
This study analysed the perceptions about healthy eating as well as some emotional factors conditioning eating behaviour in a sample of people from Portugal, Brazil and Argentina. This is a descriptive cross-sectional study involving a non-probabilistic sample of 2501 participant. Data was collected through a questionnaire applied to adult citizens residing in their respective countries. For data analysis chi-square tests were used, and associations were evaluated by Cramer’s coefficients. Moreover, a tree classification analysis was conducted for variables related with perceptions about healthy eating and emotional conditioning of eating behaviour. The results revealed that participants’ perceptions are generally in agreement with healthy eating. However, significant differences were found between countries (p = 0.018) and by levels of education (p < 0.0005), with a more accurate perception for Portugal and at the university level. The existence of statistically significant associations between all sociodemographic variables considered and the conditioning of eating behaviour by emotional motivations should be noted. Tree classification analysis showed that the most important discriminant sociodemographic variable for perceptions about healthy eating was education, followed by professional area and country, while the most relevant discriminants for emotional conditioning of eating behaviour were country and then living environment and sex. Thus, it is important to consider these variables in initiatives that aim to promote adherence to behaviours that contribute to the health and well-being of the population.

29 October 2022 in Sustainability
Verified
Journal Article
Open access
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Raquel P. F. GuinéRaquel P. F. Guiné
Raquel P. F. Guiné
Sofia Guiné FlorençaSofia Guiné Florença
Sofia Guiné Florença
Ofélia AnjosOfélia Anjos
Ofélia Anjos
Nada Mallah BoustaniNada Mallah Boustani
Nada Mallah Boustani
CCCristina Chuck-Hernandez
Cristina Chuck-Hernandez
Ilija DjekicIlija Djekic
Ilija Djekic
In recent years, edible insects have been suggested as an alternative food that is more sustainable compared with other sources of animal protein. However, knowledge about the sustainability aspects associated with this source of food may play a role in convincing consumers to adopt insects as part of their diet. In this context, the present study investigated the level of knowledge about the sustainability of edible insects in a group of people originating from 14 countries, with some naturally entomophagous and others not. To measure the knowledge, 11 items were selected and the scores obtained were tested with statistical tools (t-test for independent samples, analysis of variance—ANOVA) to search for differences according to sociodemographic and socioeconomic characteristics, geographical origin, and consumption habits of edible insects. The obtained results showed that, in general, knowledge is moderate, with the values of the average scores for the 11 items investigated ranging from 0.23 ± 0.99 to 0.66 ± 1.02, on a scale ranging from −2 (=very low knowledge) to 2 (=very high knowledge). The highest scores were found for items relating to the lower use of animal feed and lower emission of greenhouse gases required for the production of insects compared with beef. When investigating the differences between groups of participants, significant differences were generally found, revealing a trend for higher knowledge among males and young adults, for participants residing in urban areas and in countries such as Spain, Mexico, and Poland, and for participants with higher education levels and higher incomes. When testing the influence of consumption variables on the level of knowledge, the results showed a higher knowledge for participants who had already consumed insects or are willing to consume them. Finally, it was observed that higher knowledge was found for participants whose motivation to consume insects related to curiosity, a wish to preserve the planet, the gastronomic characteristics of insects, and their nutritional value. In conclusion, these results clearly indicate a very marked influence of a number of variables on the knowledge about the sustainability of edible insects, and this may be helpful to delineate strategies to effectively raise knowledge and eventually increase the willingness to consider insects as a more sustainable alternative to partially replace other protein foods, even in countries where this is a not a traditional practice.

21 June 2021 in International Journal of Food Sciences and Nutrition
Verified
Journal Article
Closed access
Vítor MartinhoVítor Martinho
Vítor Martinho
Elena BartkieneElena Bartkiene
Elena Bartkiene
Ilija DjekicIlija Djekic
Ilija Djekic
Monica TarceaMonica Tarcea
Monica Tarcea
IBIrena Colić Barić
Irena Colić Barić
Raquel P. F. GuinéRaquel P. F. Guiné
Raquel P. F. Guiné
Food consumption involves several dimensions, being some of them directly associated with the consumers' characteristics. The interrelationships between these domains impact consumer behaviour for food choice and the consequent decisions for food consumption. In these frameworks, economic motivations are determinant. On the other hand, the scientific literature highlights that the economic-based stimuli to choose food is still underexplored. In this perspective, the objective of this study was to assess the main sociodemographic and anthropometric determinants of the economic motivations for food choice. For that, a questionnaire survey was carried out involving 11,919 respondents from 16 countries. A validated questionnaire was used, translated into the native languages in all participating countries, using a back-translation process. First, the information obtained was assessed through factor analysis to reduce the number of variables associated with the economic motivations and to identify indexes. After, and considering the indexes obtained as dependent variables, a classification and regression tree analysis was performed. As main insights, it is highlighted that the main determinants of the economic motivations are country of residence, age, gender, civil state, professional activity, educational level, living environment, responsibility for buying food, weight, height, body mass index, healthy diets and physical exercise practices. Additionally, the results also reveal that economic motivations may be associated with two indexes, one related to convenience attitudes and the other to quality concerns. Finally, the younger persons and the women are the social groups more concerned with healthy diets and food quality. In conclusion, this work confirmed that food choice is to a high extent influenced by several sociodemographic and behavioural factors.