Benefits of dietary fibre to human health: study from a multi-country platform

Because dietary fibre has been recognized as a major ally to the maintenance of a healthy body as well as to help against the development of some chronic diseases, this paper aims to study the level of knowledge of a relatively wide range of people about the health effects related to the ingestion of dietary fibre in appropriate dosages.

A descriptive cross-sectional study was undertaken on a non-probabilistic sample of 6,010 participants. The data were collected from 10 countries in three different continents (Europe, Africa and America) and measured the level of knowledge regarding different health benefits from dietary fibre. The questionnaires were applied by direct interview after verbal informed consent.

The results obtained considering the general level of knowledge revealed a considerable degree of information about the benefits of fibre (average score of 3.54 ± 0.5, on a scale from 1 to 5). There were significant differences between genders (p < 0.001), with higher average score for women, and also for level of education (p < 0.001), with higher score for university level. The living environment also showed significant differences (p < 0.001), with people living in urban areas showing a higher degree of knowledge. Also for countries the differences were significant (p < 0.001), with the highest score obtained for Portugal (3.7), and the lowest for Croatia, Italy, Latvia, Macedonia and Romania (3.5). However, despite these differences, the results showed that for all the countries the degree of knowledge was good (above 3.5), corresponding to a minimum level of knowledge of 70 per cent.

This work is considered important due to the wide coverage, including so many countries inclusive with different social and cultural settings. The study allowed concluding that, in general, the participants in the study were quite well informed about the benefits of dietary fibre for the improvement of human health, regardless of gender, level of education, living environment or country. This finding is very relevant considering the diversity of people that composed the sample and reinforces the necessity of continuing with educational policies aimed at providing the general population with the knowledge that might help them make appropriate food choices.