{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T15:19:29Z","timestamp":1785424769605,"version":"3.56.0"},"reference-count":44,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2026,6,8]],"date-time":"2026-06-08T00:00:00Z","timestamp":1780876800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001962","name":"World Anti-Doping Agency","doi-asserted-by":"publisher","award":["https:\/\/www.wada-ama.org\/sites\/default\/files\/resources\/files\/final_clean_list_of_approved_projects_2021_social_science_research_grant_program_en_cm_1.pdf"],"award-info":[{"award-number":["https:\/\/www.wada-ama.org\/sites\/default\/files\/resources\/files\/final_clean_list_of_approved_projects_2021_social_science_research_grant_program_en_cm_1.pdf"]}],"id":[{"id":"10.13039\/501100001962","id-type":"DOI","asserted-by":"publisher"}]},{"award":["https:\/\/www.wada-ama.org\/sites\/default\/files\/resources\/files\/final_clean_list_of_approved_projects_2021_social_science_research_grant_program_en_cm_1.pdf"],"award-info":[{"award-number":["https:\/\/www.wada-ama.org\/sites\/default\/files\/resources\/files\/final_clean_list_of_approved_projects_2021_social_science_research_grant_program_en_cm_1.pdf"]}],"id":[{"id":"https:\/\/ror.org\/00v3jqn19","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nutrients"],"abstract":"<jats:p>Background: The use of sports supplements among adolescents is rising globally, driven by fitness trends and social media influence, yet knowledge gaps persist. This study aimed to assess supplement usage patterns, knowledge, attitudes, information sources, and the impact of a social media educational intervention among Serbian secondary school students. Methods: A single-group pre\u2013post educational intervention study was conducted in secondary school students (aged 14\u201318) in Vojvodina, Serbia. A 21-question anonymous questionnaire was distributed to 1000 students along with parental informed consent forms. Pre-intervention survey assessed sociodemographics, physical activity and social media habits, supplement use information sources, and awareness of risks and banned substances. Based on the initial findings, an educational campaign delivered 56 short videos (\u224870 s each) on Instagram and TikTok covering most frequently used supplements (e.g., creatine, proteins, caffeine, energy drinks). After, the intervention survey was repeated. The data were analyzed using the McNemar\u2013Bowker test of symmetry. Results: In this study, 65% of Serbian secondary school adolescents reported being physically active, engaging predominantly in gym workouts and team sports. The majority of participants initiate dietary supplement use independently, without consulting healthcare professionals or adults. The most commonly used supplements were vitamins and minerals, while energy drinks ranked notably high. Social media intervention had a limited impact due to its short duration; however, certain changes were detected. Conclusions: Serbian adolescents frequently use sports supplements without adequate professional guidance. Long-term TikTok\/Instagram interventions could be used in the future in order to influence behaviors and improve knowledge about sport supplement use.<\/jats:p>","DOI":"10.3390\/nu18121849","type":"journal-article","created":{"date-parts":[[2026,6,8]],"date-time":"2026-06-08T16:25:16Z","timestamp":1780935916000},"page":"1849","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Sport Supplement Use in 14\u201318-Year-Old Adolescents: A Single-Group Pre\u2013Post Social Media Educational Intervention Study"],"prefix":"10.3390","volume":"18","author":[{"given":"Nikola","family":"Joji\u0107","sequence":"first","affiliation":[{"name":"Faculty of Pharmacy Novi Sad, University Business Academy in Novi Sad, Heroja Pinkija 4, 21000 Novi Sad, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4848-2737","authenticated-orcid":false,"given":"Mire","family":"Zloh","sequence":"additional","affiliation":[{"name":"Faculty of Pharmacy Novi Sad, University Business Academy in Novi Sad, Heroja Pinkija 4, 21000 Novi Sad, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9329-2468","authenticated-orcid":false,"given":"Nata\u0161a Jovanovi\u0107","family":"Lje\u0161kovi\u0107","sequence":"additional","affiliation":[{"name":"Faculty of Pharmacy Novi Sad, University Business Academy in Novi Sad, Heroja Pinkija 4, 21000 Novi Sad, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suzana","family":"Miljkovi\u0107","sequence":"additional","affiliation":[{"name":"Faculty of Pharmacy Novi Sad, University Business Academy in Novi Sad, Heroja Pinkija 4, 21000 Novi Sad, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Svetlana","family":"Stojkov","sequence":"additional","affiliation":[{"name":"Faculty of Pharmacy Novi Sad, University Business Academy in Novi Sad, Heroja Pinkija 4, 21000 Novi Sad, Serbia"},{"name":"College of Vocational Studies for the Education of Preschool Teachers and Sports Trainers in Subotica, Banijska 67, 24000 Subotica, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0487-658X","authenticated-orcid":false,"given":"Marina","family":"Kali\u0107","sequence":"additional","affiliation":[{"name":"Faculty of Pharmacy Novi Sad, University Business Academy in Novi Sad, Heroja Pinkija 4, 21000 Novi Sad, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9772-3998","authenticated-orcid":false,"given":"Sla\u0111ana","family":"Vojvodi\u0107","sequence":"additional","affiliation":[{"name":"Faculty of Pharmacy Novi Sad, University Business Academy in Novi Sad, Heroja Pinkija 4, 21000 Novi Sad, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8191-1735","authenticated-orcid":false,"given":"Milan","family":"Ili\u0107","sequence":"additional","affiliation":[{"name":"Faculty of Pharmacy Novi Sad, University Business Academy in Novi Sad, Heroja Pinkija 4, 21000 Novi Sad, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9488-9781","authenticated-orcid":false,"given":"Aleksandra Jovanovi\u0107","family":"Galovi\u0107","sequence":"additional","affiliation":[{"name":"Faculty of Pharmacy Novi Sad, University Business Academy in Novi Sad, Heroja Pinkija 4, 21000 Novi Sad, Serbia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,6,8]]},"reference":[{"key":"ref_1","unstructured":"European Parliament and Council of the European Union (2002). Directive 2002\/46\/EC on the Approximation of the Laws of the Member States Relating to Food Supplements. Off. J. Eur. Communities, L183, 51\u201357."},{"key":"#cr-split#-ref_2.1","unstructured":"Ministry of Health of Republic of Serbia (2025, December 22). Rulebook on Food Supplements (Dietary Supplements). Off. Gaz. RS 2022, 45, 360"},{"key":"#cr-split#-ref_2.2","unstructured":"Amendment in 2023, 20, 99 and Amendment in 2024, 73, 187, Available online: https:\/\/www.puma.vojvodina.gov.rs\/index.php?lang=7."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Hamulka, J., Jeruszka-Bielak, M., G\u00f3rnicka, M., Drywie\u0144, M.E., and Zielinska-Pukos, M.A. (2020). Dietary Supplements during COVID-19 Outbreak. Results of Google Trends Analysis Supported by PLifeCOVID-19 Online Studies. Nutrients, 13.","DOI":"10.3390\/nu13010054"},{"key":"ref_4","unstructured":"Grand View Research (2025, July 12). Nutritional Supplements Market Size, Share & Trends Analysis Report by Product (Sports Nutrition, Dietary Supplements, Functional F&B, Fat Burners), by Formulation, by Consumer Group, by Sales Channel, by Application, by Region, and Segment Forecasts, 2025\u20132030. Available online: https:\/\/www.Grandviewresearch.Com\/Industry-Analysis\/Nutritional-Supplements-Market."},{"key":"ref_5","unstructured":"Grand View Research (2025, July 12). Global Sports Nutrition Market Size & Outlook, 2023\u20132030. Available online: https:\/\/www.Grandviewresearch.Com\/Horizon\/Outlook\/Sports-Nutrition-Market-Size\/Global."},{"key":"ref_6","unstructured":"Market Research.Com (2025, July 12). Euromonitor International, Sports Nutrition in Serbia. Available online: https:\/\/www.Marketresearch.Com\/Euromonitor-International-V746\/Sports-Nutrition-Serbia-32328010\/."},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"\u017de\u017eelj, S.P., Tomljanovi\u0107, A., Jovanovi\u0107, G.K., Kre\u0161i\u0107, G., Peloza, O.C., Draga\u0161-Zubalj, N., and Prokurica, I.P. (2018). Prevalence, Knowledge and Attitudes Concerning Dietary Supplements among a Student Population in Croatia. Int. J. Environ. Res. Public Health, 15.","DOI":"10.3390\/ijerph15061058"},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Gardiner, P., Buettner, C., Davis, R.B., Phillips, R.S., and Kemper, K.J. (2008). Factors and Common Conditions Associated with Adolescent Dietary Supplement Use: An Analysis of the National Health and Nutrition Examination Survey (NHANES). BMC Complement. Altern. Med., 8.","DOI":"10.1186\/1472-6882-8-9"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"653","DOI":"10.1097\/01.mop.0000172819.72013.5d","article-title":"Dietary Supplement Use in Adolescents","volume":"17","author":"Dorsch","year":"2005","journal-title":"Curr. Opin. Pediatr."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"98","DOI":"10.1093\/her\/18.1.98","article-title":"Consumption of Nutritional Supplements Among Adolescents: Usage and Perceived Benefits","volume":"18","year":"2003","journal-title":"Health Educ. Res."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"102228","DOI":"10.1016\/j.ctim.2019.102228","article-title":"Epidemiology of Dietary Supplement Use in Serbia: Report from Novi Sad","volume":"47","year":"2019","journal-title":"Complement. Ther. Med."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"163","DOI":"10.2298\/MPNS1304163M","article-title":"Knowledge, Attitudes and Use of Dietary Supplement Among Students of the University of Nis (Serbia)","volume":"66","year":"2013","journal-title":"Med. Pregl."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Vidovi\u0107, B., \u0110uri\u010di\u0107, B., Odalovi\u0107, M., Milo\u0161evi\u0107 Georgiev, A., and Tadi\u0107, I. (2022). Dietary Supplements Use among Serbian Undergraduate Students of Different Academic Fields. Int. J. Environ. Res. Public Health, 19.","DOI":"10.3390\/ijerph191711036"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1186\/s12970-019-0294-7","article-title":"Prevalence, Knowledge and Attitudes towards Using Sports Supplements among Young Athletes","volume":"16","author":"Jovanov","year":"2019","journal-title":"J. Int. Soc. Sports Nutr."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Kotnik, K.Z., Seljak, B.K., Gregori\u010d, M., Jurak, G., and Golja, P. (2023). Questionable Advisability of Vitamin and Mineral Dietary Supplement Use in Adolescents. BMC Nutr., 9.","DOI":"10.1186\/s40795-023-00768-z"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"104525","DOI":"10.1016\/j.cdnut.2024.104525","article-title":"\u201cWhere\u201d and \u201cWhat\u201d Do Adolescent Athletes Learn When It Comes to Food Literacy Compared With Adolescents That Do Not Play Sports? A Gender-Based Thematic Analysis","volume":"9","author":"Deslippe","year":"2025","journal-title":"Curr. Dev. Nutr."},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Gulec, H. (2026). From Scroll to Sale: Online Media Engagement Predicts Adolescents\u2019 Online Supplement Purchases in a Nationally Representative Cross-Sectional Study. Front. Psychol., 17.","DOI":"10.3389\/fpsyg.2026.1722369"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"1022","DOI":"10.3390\/pediatric16040087","article-title":"Social Media Use and Fear of Missing out: An Exploratory Cross-Sectional Study in Junior High Students from Western Mexico","volume":"16","year":"2024","journal-title":"Pediatr. Rep."},{"key":"ref_19","doi-asserted-by":"crossref","unstructured":"\u00dcnl\u00fc, S., Uzun, K., and Arslan, G. (2025). Mindfulness-Based Intervention in Schools: Addressing Social Media Burnout and Enhancing Well-Being in Adolescents. Children, 12.","DOI":"10.3390\/children12070826"},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Lotti, S., Tristan Asensi, M., Cret\u00ec, D., Mollo, E., Sarti, A., Sciattella, F., Dinu, M., Colombini, B., Rizzo, L., and Sofi, F. (2025). High Use of Dietary Supplements and Low Adherence to the Mediterranean Diet Among Italian Adolescents: Results from the EduALI Project. Nutrients, 17.","DOI":"10.3390\/nu17132213"},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Ndubisi, A., Agyapong-Opoku, F., and Agyapong, B. (2025). Social Media Use and Sleep Quality in Adolescents and Young Adults: A Scoping Review of Reviews. Children, 13.","DOI":"10.3389\/fpubh.2025.1710333"},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Ayd\u0131n, D., and G\u00f6nc\u00fc, H.B. (2025). From Childhood Experiences to Social Media Addiction: Unraveling the Impact on Adolescents. Children, 12.","DOI":"10.3390\/children12030385"},{"key":"ref_23","first-page":"337","article-title":"Supplement Use by Young Athletes","volume":"6","author":"McDowall","year":"2007","journal-title":"J. Sports Sci. Med."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"104","DOI":"10.1123\/ijsnem.14.1.104","article-title":"Nutritional Supplement Use among College Athletes and Their Sources of Information","volume":"14","author":"Froiland","year":"2004","journal-title":"Int. J. Sport Nutr. Exerc. Metab."},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Chiba, T., Kobayashi, E., Okura, T., Sekimoto, M., Mizuno, H., Saito, M., and Umegaki, K. (2020). An Educational Intervention Improved Knowledge of Dietary Supplements in College Students. BMC Public Health, 20.","DOI":"10.1186\/s12889-020-08786-3"},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Daher, J., El Khoury, D., and Dwyer, J.J.M. (2021). Education Interventions to Improve Knowledge, Beliefs, Intentions and Practices with Respect to Dietary Supplements and Doping Substances: A Narrative Review. Nutrients, 13.","DOI":"10.3390\/nu13113935"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"S240","DOI":"10.1139\/apnm-2015-0630","article-title":"Systematic Review of Sedentary Behaviour and Health Indicators in School-Aged Children and Youth: An Update","volume":"41","author":"Carson","year":"2016","journal-title":"Appl. Physiol. Nutr. Metab."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"262","DOI":"10.1016\/S2215-0366(20)30034-1","article-title":"Depressive Symptoms and Objectively Measured Physical Activity and Sedentary Behaviour throughout Adolescence: A Prospective Cohort Study","volume":"7","author":"Kandola","year":"2020","journal-title":"Lancet Psychiatry"},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"(2020). World Health Organization 2020 Guidelines on Physical Activity and Sedentary Behaviour. Br. J. Sports Med., 54, 1451\u20131462.","DOI":"10.1136\/bjsports-2020-102955"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"817","DOI":"10.1016\/j.jneb.2017.07.005","article-title":"Faster, Stronger, Healthier: Adolescent-Stated Reasons for Dietary Supplementation","volume":"49","author":"Jurak","year":"2017","journal-title":"J. Nutr. Educ. Behav."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"780","DOI":"10.1001\/jamapediatrics.2018.1008","article-title":"Prevalence of Dietary Supplement Use in US Children and Adolescents, 2003\u20132014","volume":"172","author":"Qato","year":"2018","journal-title":"JAMA Pediatr."},{"key":"ref_32","doi-asserted-by":"crossref","unstructured":"Jun, S., Cowan, A.E., Tooze, J.A., Gahche, J.J., Dwyer, J.T., Eicher-Miller, H.A., Bhadra, A., Guenther, P.M., Potischman, N., and Dodd, K.W. (2018). Dietary Supplement Use among U.S. Children by Family Income, Food Security Level, and Nutrition Assistance Program Participation Status in 2011\u20132014. Nutrients, 10.","DOI":"10.3390\/nu10091212"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"77","DOI":"10.1016\/j.ijmedinf.2018.10.001","article-title":"The Use of Social Media in Nutrition Interventions for Adolescents and Young Adults\u2014A Systematic Review","volume":"120","author":"Chau","year":"2018","journal-title":"Int. J. Med. Inf."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"ckaf161.1477","DOI":"10.1093\/eurpub\/ckaf161.1477","article-title":"The Role of Social Media in Influencing Dietary Supplement Use Among Young Adults in Kazakhstan","volume":"35","author":"Yergaliyev","year":"2025","journal-title":"Eur. J. Public Health"},{"key":"ref_35","first-page":"162","article-title":"The Use of Social Media as a Source of Nutrition Information","volume":"36","author":"Kreft","year":"2023","journal-title":"S. Afr. J. Clin. Nutr."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"A51","DOI":"10.1016\/j.jand.2025.06.321","article-title":"Impacts of Social Media Based Nutrition Education: A Systematic Review","volume":"125","author":"Bradshaw","year":"2025","journal-title":"J. Acad. Nutr. Diet."},{"key":"ref_37","first-page":"394E","article-title":"Gathering Consumption Data on Specific Consumer Groups of Energy Drinks","volume":"10","author":"Zucconi","year":"2013","journal-title":"EFSA Support. Publ."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"85","DOI":"10.13112\/pc.542","article-title":"Energy Drink Consumption among Medical High School Students in Serbia","volume":"60","year":"2016","journal-title":"Paediatr. Croat."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"37","DOI":"10.5937\/hraIsh2101037M","article-title":"Use of Energy Drinks and Their Impact on the Body Based on the View of Student Population","volume":"62","year":"2021","journal-title":"Hrana Ishr."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1016\/j.addbeh.2017.03.016","article-title":"Energy Drink and Alcohol Mixed Energy Drink Use among High School Adolescents: Association with Risk Taking Behavior, Social Characteristics","volume":"72","author":"Scalese","year":"2017","journal-title":"Addict. Behav."},{"key":"ref_41","doi-asserted-by":"crossref","unstructured":"Collins, L.M., Graham, J.W., Rousculp, S.S., and Hansen, W.B. (1997). Heavy Caffeine Use and the Beginning of the Substance Use Onset Process: An Illustration of Latent Transition Analysis. The Science of Prevention: Methodological Advances from Alcohol and Substance Abuse Research, American Psychological Association.","DOI":"10.1037\/10222-003"},{"key":"ref_42","first-page":"222","article-title":"Caffeinated Energy Drink Consumption among Adolescents and Potential Health Consequences Associated with Their Use: A Significant Public Health Hazard","volume":"88","author":"Soliman","year":"2017","journal-title":"Acta Bio Medica Atenei Parm."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"638","DOI":"10.1016\/j.appet.2016.07.001","article-title":"Adolescent Energy Drink Consumption: An Australian Perspective","volume":"105","author":"Costa","year":"2016","journal-title":"Appetite"}],"container-title":["Nutrients"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-6643\/18\/12\/1849\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T04:10:30Z","timestamp":1781583030000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-6643\/18\/12\/1849"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,6,8]]},"references-count":44,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2026,6]]}},"alternative-id":["nu18121849"],"URL":"https:\/\/doi.org\/10.3390\/nu18121849","relation":{},"ISSN":["2072-6643"],"issn-type":[{"value":"2072-6643","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,6,8]]}}}