Vedecký časopis

Journal of Food and Nutrition Research
Online First Articles

Zdešar Kotnik, K. – Jurak, G. – Starc, G. – Puc, M. – Golja, P.
Use of dietary supplements in differently active adolescents

Petra Golja, Department of Biology, Biotechnical Faculty, University of Ljubljana, Vecna pot 111, SI-1000 Ljubljana, Slovenia. Tel.: +386 (0)1 320 34 22, fax: +386 (0)1 257 33 90, e-mail: petra.golja@bf.uni-lj.si

Received 11 June 2017; 1st revised 9 December 2017; 2nd revised 26 December 2018; 3rd revised 1 February 2018; accepted 21 February 2018

Súhrn: Aim of our study was to determine whether the extent of physical activity (PA) and sports-club membership affect the prevalence and frequency of dietary supplement (DS) use. Data were obtained within the Slovenian ACDSi-2014 cross-sectional study. Adolescents (14–19 years old) enrolled in 15 public secondary schools (n = 1463) were included in a nationally representative study sample. Average daily energy expenditure for PA (DEEPA) was determined with School Health Action, Planning and Evaluation System questionnaire. DS data were collected with purposely prepared questionnaire. Our results indicate that more than two-thirds (69 %) of adolescents used DS, when DS users were defined as anyone using DS at least several times per year. However, if DS users were defined differently, i.e. according to their frequency of DS use, the prevalence changed considerably, namely to 52 %, 40 %, and 14 %, for those using DS at least once per month, week, or day, respectively. With higher average DEEPA and sports-club membership, DS use increased significantly. A comparison of different prevalence of DS use related to different frequency of DS use demonstrate a big discrepancy between these prevalence estimations, which points to an urgent need for a methodological standardisation of data acquisition regarding DS use.

Kľúčové slová: dietary supplementations; physical activity; adolescents; standardization; organized sports