Evaluation of functional food knowledge level and diet quality of university students

Abstract

Knowledge about functional foods can influence individuals' health perspectives and alter their dietary habits. The study aimed to evaluate university students' understanding of the health benefits and nutritional value of functional foods and to examine how this understanding relates to the quality of their overall diet. This cross-sectional study was conducted among 185 university students aged 19 to 26. The Knowledge Level Scale of Functional Foods was used to assess participants' knowledge of functional foods. The participants' dietary intakes were assessed using a single 24-hour dietary recall. The participants' diet quality was assessed using their Healthy Eating Index-2015 (HEI-2015) scores. There were statistically significant differences in HEI-2015 scores for seafood, plant proteins, and added sugars by functional food knowledge level (p < 0.05 for each). Additionally, a statistically significant correlation was found between the Knowledge Level Scale of Functional Foods score and the HEI-2015 total fruit score (r = 0.167; p < 0.05). To conclude, this study demonstrated that among individuals with sufficient functional food knowledge, total fruit consumption, a component of diet quality, was higher. Additionally, further studies are needed on the level of functional food knowledge, its sub-dimensions, consumption, and diet quality.

Keywords

• Functional food knowledge
• Diet quality
• Nutrition
• Nutritional status

References

1. Alkerwi, A. (2014). Diet quality concept. Nutrition, 30(6), 613-618. https://doi.org/10.1016/j.nut.2013.10.001
2. Baker, M.T., Lu, P., Parrella, J.A. & Leggette, H.R. (2022). Investigating the effect of consumers’ knowledge on their acceptance of functional foods: a systematic review and meta-analysis. Foods, 11(8), 1135. https://doi.org/10.3390/foods11081135
3. Bech-Larsen, T. & Grunert, K.G. (2003). The perceived healthiness of functional foods: A conjoint study of Danish, Finnish and American consumers' perception of functional foods. Appetite, 40(1), 9–14. https://doi.org/10.1016/s0195-6663(02)00171-x
4. Brečić, R., Gorton, M. & Barjolle, D. (2014). Understanding variations in the consumption of functional foods–evidence from Croatia. British Food Journal, 116(4), 662–675. https://doi.org/10.1108/BFJ-05-2012-0133
5. Carbonneau, E., Lamarche, B., Provencher, V., Desroches, S., Robitaille, J., Vohl, M.-C., Bégin, C., Bélanger, M., Couillard, C. & Pelletier, L. (2021). Associations between nutrition knowledge and overall diet quality: the moderating role of sociodemographic characteristics results from the PREDISE study. American Journal of Health Promotion, 35(1), 38–47. https://doi.org/10.1177/0890117120928877
6. Cencic, A. & Chingwaru, W. (2010). The role of functional foods, nutraceuticals, and food supplements in intestinal health. Nutrients, 2(6), 611–625. https://doi.org/10.3390/nu2060611
7. Çetin, B. and Tümer, E.İ. (2021). The Factors Affecting Willingness to Consume Functional Foods in Mersin Province. Kahramanmaraş Sütçü İmam Üniversitesi Tarım ve Doğa Dergisi, 24(4), 871-877. https://doi.org/10.18016/ksutarimdoga.vi.780845
8. Elfhag, K., Tholin, S. & Rasmussen, F. (2008). Consumption of fruit, vegetables, sweets and soft drinks is associated with psychological dimensions of eating behaviour in parents and their 12-year-old children. Public Health Nutrition, 11(9), 914–923. https://doi.org/10.1017/S1368980007001311

9. Elmadfa, I. & Meyer, A.L. (2012). Diet quality, a term subject to change over time. International Journal for Vitamin and Nutrition Research, 82(3), 144–147. https://doi.org/10.1024/0300-9831/a000104
10. Esgin, Ö. and Özçelik, A. (2021). 20-35 Yaş Arası Bireylerde Fonksiyonel Besinlere Yönelik Tutum, Davranış ve Bilgi Düzeyinin Değerlendirilmesi. Ankara Sağlık Bilimleri Dergisi, 10(2), 67-82. https://doi.org/10.46971/ausbid.942709
11. George D & Mallery, M. (2010). SPSS for Windows Step by Step: A Simple Guide and Reference, 17.0 update (10th ed.). Boston: Pearson.
12. Govzman, S., Looby, S., Wang, X., Butler, F., Gibney, E., & Timon, C. (2021). A systematic review of the determinants of seafood consumption. British Journal of Nutrition, 126(1), 66–80. https://doi.org/10.1017/S0007114520003773
13. Grimm, E.R. & Steinle, N.I. (2011). Genetics of eating behavior: established and emerging concepts. Nutrition Reviews, 69(1), 52–60. https://doi.org/10.1111/j.1753-4887.2010.00361.x
14. İrkin, R. and Batu, Z. (2021). Sağlik Bilimleri Fakültesi Öğrencilerinin Fonksiyonel Besinlere Yönelik Tutumlarinin ve Bazı Fonksiyonel Besinleri Tüketim Sikliklarinin Belirlenmesi. Erciyes Üniversitesi Sağlik Bilimleri Dergisi, 30(2). https://doi.org/10.34108/eujhs.870320
15. Javadi Arjmand, E., Bemanian, M., Vold, J.H., Skogen, J.C., Sandal, G.M., Arnesen, E.K., Mæland, S. & Fadnes, L.T. (2023). Emotional Eating and Changes in High-Sugar Food and Drink Consumption Linked to Psychological Distress and Worries: A Cohort Study from Norway. Nutrients, 15(3), 778. https://doi.org/10.3390/nu15030778
16. Jeffers, A.J., Mason, T.B. & Benotsch, E.G. (2020). Psychological eating factors, affect, and ecological momentary assessed diet quality. Eating and Weight Disorders-Studies on Anorexia, Bulimia and Obesity, 25, 1151–1159. https://doi.org/10.1007/s40519-019-00743-3
17. Kapsak, W.R., Rahavi, E.B., Childs, N.M. & White, C. (2011). Functional foods: consumer attitudes, perceptions, and behaviors in a growing market. Journal of the American Dietetic Association, 111(6), 804–810. https://doi.org/10.1016/j.jada.2011.04.003
18. Konttinen, H., Männistö, S., Sarlio-Lähteenkorva, S., Silventoinen, K. and Haukkala, A. (2010). Emotional eating, depressive symptoms and self-reported food consumption. A population-based study. Appetite, 54(3), 473-479. https://doi.org/10.1016/j.appet.2010.01.014
19. Krebs-Smith, S.M., Pannucci, T.E., Subar, A.F., Kirkpatrick, S.I., Lerman, J.L., Tooze, J.A., Wilson, M.M., & Reedy, J. (2018). Update of the healthy eating index: HEI-2015. Journal of the Academy of Nutrition and Dietetics, 118(9), 1591–1602. https://doi.org/10.1016/j.jand.2018.05.021
20. Laparra, J.M. & Sanz, Y. (2010). Interactions of gut microbiota with functional food components and nutraceuticals. Pharmacological Research, 61(3), 219–225. https://doi.org/10.1016/j.phrs.2009.11.001
21. Rakıcıoğlu, N., Acar Tek, N., Ayaz, A. and Pekcan, G. (2017). Yemek ve Besin Fotoğraf Kataloğu: Ölçü ve Miktarlar (1st ed.). Ankara: Ata Ofset Matbaacılık. Richter, I., Thøgersen, J. & Klöckner, C.A. (2017). Sustainable seafood consumption in action: Relevant behaviors and their predictors. Sustainability, 9(12), 2313. https://doi.org/10.3390/su9122313
22. Sarkar, T., Salauddin, M., Roy, A., Sharma, N., Sharma, A., Yadav, S., Jha, V., Rebezov, M., Khayrullin, M., & Thiruvengadam, M. (2023). Minor tropical fruits as a potential source of bioactive and functional foods. Critical Reviews in Food Science and Nutrition, 63(23), 6491–6535. https://doi.org/10.1080/10408398.2022.2033953
23. Savurdan, H. and Aktas, N. (2011). Developing knowledge level scale of functional foods: Validity and reliability study. African Journal of Biotechnology, 10(61), 13355-13360. https://doi.org/10.5897/AJB11.2003
24. Stratton, L.M., Vella, M.N., Sheeshka, J. and Duncan, A.M. (2015). Food neophobia is related to factors associated with functional food consumption in older adults. Food Quality and Preference, 41, 133–140. https://doi.org/10.1016/j.foodqual.2014.11.008
25. Wansink, B., Westgren, R.E. & Cheney, M.M. (2005). Hierarchy of nutritional knowledge that relates to the consumption of a functional food. Nutrition, 21(2), 264–268. https://doi.org/10.1016/j.nut.2004.06.022