Percorrer por autor "Ferreira, M"
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- Evaluation of consumer habits and knowledge about dietary fibre and fibre-rich products in Turkish populationPublication . Yalcin, E.; Kosemeci, C; Correia, P; Karademir, E; Ferreira, M; Florença, SG; Guiné, RaquelThis study investigated the Turkish consumers’ knowledge about dietary fibres and purchasing behaviours about fibre rich foods and also their attitudes towards food labelling with specific emphasis on dietary fibre. The survey consisted on a longitudinal study undertaken on a sample of 293 participants. For the analysis of the data, basic descriptive statistics was used, complemented with statistical tests (U-Mann Whitney (UMW) for comparisons between two groups and Kruskal-Wallis (KW) for comparisons between three or more groups. Finally, a tree classification analysis was done to evaluate the relative importance of each of the possible influential variables on knowledge: age group, level of education, gender or living environment. The results revealed that both the level of knowledge about dietary fibre and foods and also the level of knowledge about dietary fibre and health effects were considered high for the general population. The classification analysis revealed that gender was the major discriminant for knowledge about dietary fibre and foods while the most important discriminant for knowledge about dietary fibre and health effects was age. The importance of this work resided in the highlight of the pivotal factors that influence people’s knowledge about dietary fibre sources and the health benefits of its ingestion.
- Sources of Information about Dietary Fibre: A Cross-Country SurveyPublication . Ferreira, M; Guiné, Raquel; Duarte, J.Problem statement: Dietary fibre (DF) has been recognized as a major determinant for improvement of health. Hence the means of information through which people become aware of its benefits are crucial. Research questions: Where do you usually find information about dietary fibre? What means of communication do you consider the most appropriate to encourage the consumption of dietary fibre? Purpose of the study: This work aimed at studying the sources of information about dietary fibre, as a means to educate people about aspects related to healthy eating. Factors such as gender, level of education, living environment or country were evaluated as to their effect on the selection of sources and preferences. Research Methods: Descriptive cross-sectional study by means of a questionnaire, applied to a non-probabilistic sample of 6010 participants from 10 countries in different continents (Europe, Africa and America), answered after informed consent by all participants. For the analysis were used several descriptive statistics tools, crosstabs and chi square test to assess the relations between some of the variables under study. Findings: Mostly the information about DF comes from the internet, but television is recognized as suitable. Differences were found between genders, levels of education, living environments and countries. The internet (preferred source), got highest scores for Hungary, urban areas, university education and female gender. The radio (least scored source) was preferred in Egypt, for men and with lower education (primary school). Conclusions: People get information through the internet due to easy access. However, it is to some extent a risk given the impossibility to control de information made public on the internet. The role of health centres and hospitals as well as schools should definitely be increased, as a responsible way to ensure correct information.
- The impact of food choices on human and animal rights protection and environmental sustainabilityPublication . Guiné, Raquel; Correia, P; Ferreira, M; Tarcea, M; bartkiene, E; Vittadini, EIntroduction: People’s food choices are of the utmost importance to regulate markets and the food chain towards the global goal of sustainability. Objectives: The objective of this work was to evaluate to what extent some aspects linked to sustainability in the food chain influence people’s food choices, specifically in the domains of packaging, food surplus, transportation and human or animal welfare. Methods: This is a cross-sectional study involving 3183 people from Portugal, Italy, Lithuania and Romania, who participated in this questionnaire survey between January and June 2018. Results: People tend to condition their food choices in view of contributing for a more sustainable food chain with respect for environment, humans and animals. The areas in which this behaviour is stronger include avoiding food waste at home (80% of participants), preference for local foods (60%), sustainable food growing, preparation or packaging (66%). The respect for animal rights is very important for 62% of the participants, but the respect for Human rights is a concern for just 32%. The results of statistical tests indicated that age, education, country, professional area and type of diet all significantly influenced people’s choices regarding the sustainability of the food chain. Conclusions: Although the results are indicative that people start to condition their eating behaviours also according to sustainability issues, it is a fact that there is still work to be done, since the adoption of these sustainable choices is still in a limited extent.