KNOWLEDGE, ATTITUDES, ADVERTISING-RELATED FACTORS AND VITAMIN USE BEHAVIORS AMONG PHARMACY STUDENTS IN VIET NAM

Mai Thi Ngoan1, Do Hai Ha1
1 Dai Nam University

Main Article Content

Abstract

Objectives: To assess knowledge, attitudes, exposure to and perceived influence of advertising, and vitamin use behaviors of pharmacy students as well as their associations among these factors.


Materials and methods: A cross-sectional study was conducted among 414 pharmacy students using a structured questionnaire.


Results: Students demonstrated relatively good knowledge of vitamins (8.75 ± 1.77/10) and a cautious, evidence-oriented attitude (3.84 ± 0.64). Although exposure to vitamin advertising was fairly frequent, the perceived influence of advertising was moderate (2.87 ± 0.84). In the past six months, 82.61% of students that had used or were currently using vitamins, most commonly vitamins C and E. Logistic regression analysis showed that an evidence-oriented attitude was independently associated with a reduced likelihood of purchasing vitamins immediately after advertising exposure (OR = 0.33; 95% CI: 0.16–0.66; p = 0.002).


Conclusions: Among pharmacy students, attitudes toward vitamins and advertising were more strongly associated with purchasing behaviour than knowledge level or advertising exposure alone, highlighting the importance of fostering evidence-based attitudes and critical appraisal skills to support rational vitamin use and responsible counseling.

Article Details

References

1. Dickinson A, Blatman J, El-Dash N, Franco JC. Consumer usage and reasons for using dietary supplements: report of a series of surveys. Journal of the America College of Nutrition. 2014;33(2):176–182. https://doi.org/10.1080/07315724.2013.875423.
2. Lieberman HR, Marriott BP, Williams C, et al. Patterns of dietary supplement use among college students. Clinical Nutrition. 2015;34(5):976–985. https://doi.org/10.1016/j.clnu.2014.10.010.
3. Kobayashi E, Sato Y, Umegaki K, Chiba T. The prevalence of dietary supplement use among college students: a nationwide survey in Japan. Nutrients. 2017;9(11):1250. https://doi.org/10.3390/nu9111250.
4. Elsahoryi NA, Odeh MM, Abu Jadayil S, et al. Prevalence of dietary supplement use and knowledge, attitudes, practice (KAP) and associated factors in student population: a cross-sectional study. Heliyon. 2023;9(4):e14736. https://doi.org/10.1016/j.heliyon.2023.e14736.
5. Samreen S, Siddiqui NA, Wajid S, et al. Prevalence and use of dietary supplements among pharmacy students in Saudi Arabia. Risk Manag Healthc Policy. 2020;13:1523–1531. https://doi.org/10.2147/RMHP.S256656.
6. Ngô, M. U., & Phạm, T. L. A. (2023). Khẩu phần ăn và tình trạng dinh dưỡng của sinh viên khoa y tế công cộng đại học y dược thành phố Hồ Chí Minh năm 2022. Tạp Chí Y học Việt Nam, 529(2). https://doi.org/10.51298/vmj.v529i2.6472.
7. Hà, Đào T. T., My, Đỗ T., & Hưng, L. X. (2025). Kiến thức, thái độ và các yếu tố liên quan đến thực trạng sử dụng thực phẩm bảo vệ sức khỏe ở sinh viên trường đại học Y Hà Nội năm 2023. Tạp Chí Y học Cộng đồng, 66(CĐ4-NCKH). https://doi.org/10.52163/yhc.v66iCD4.2346
8. Molani-Gol R, Rafraf M, Aftabi-Yousefabad S. Knowledge, attitude, and practices regarding dietary supplements in Iranian college students: a cross-sectional study. Discover Public Health. 2025;22. https://doi.org/10.1186/s12982-025-00469-x
9. Ghassan B, Salim KS, Salih A, Ghazi HF. Prevalence of vitamin supplements usage among private university students in Iraq. HIV Nursing. 2022;22(2):239–242. https://doi.org/10.31838/hiv22.02.49.
10. Miller MC. Utilization of dietary supplements among university students: a review. Asian Journal of Research in Nursing and Health. 2022;5(1):246–255; https://journalajrnh.com/index.php/AJRNH/article/view/99