Introduction: Dietary supplements (DS) are dietary products aiming only at diet complementation. Nevertheless, they are frequently used in treatment of various conditions since they are safer substitutes for medication.
Aim of the study: The aim of this study was to analyze the frequency of dietary supplements using by young people, their knowledge about the used substances, and the assessment of the effectiveness of DS by those who consumed these products.
Materials and methods: The present study was conducted by the means of an anonymous questionnaire assessed the DS intake among subjects aged between 15 and 54. The questionnaire was performed both on-line among 611 subjects and in paper form among 242 1st year medical students of Medical University of Lublin. The average age of the participants was 22.02 ± 3.74 years. Women constituted 72.92% of all respondents.
Results: DS consumption was reported by most questionnaire participants, that is 77. 84%. The supplements were purchased mainly in pharmacies (81.63%). 47.87% of the respondents, declared to be aware of the undesirable side effects of DS, and 67.29% claimed to be able to distinguish between a medication and a supplement. 20.48% of the respondents reported a significant improvement of their condition resulting from DS usage, 51.05% reported a partial improvement, and 28.46% observed no difference.
Conclusions: Dietary supplements are commonly consumed by young people regardless of the fact that many do not observe any DS intake-related improvement of their health. The knowledge about the effects of dietary supplements and their adverse effects is relatively high. Yet, many people do not know the difference between a medication and DS. The knowledge concerning the risks of DS misuse should be promoted among young people in particular.
Keywords: dietary supplement; medication; health.