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Objectives: The aim of the study is to explore the use of dietary supplements and to assess awareness of its positive/adverse effects among physically active adults and the general population in Saudi Arabia. Methods: We conducted a cross-sectional online survey-based study and received 574 responses showing frequencies and types of dietary supplements. Results: The results show that 44.6% of respondents use dietary supplements. The most used dietary supplements were Vitamin C and multivitamins, consumed by 44% of the respondents, Vitamin D (44%), Iron (41%), and Calcium (39%). Protein sports bars and powder were consumed mainly by gym members, particularly those practicing weight-training exercises. Approximately 4% of respondents reported side-effects secondary to the usage of the dietary supplements. We conclude that the dietary supplement usage is widespread in Saudi Arabia among both gym members and the general public. Conclusion: It is highly recommended to increase awareness measures from official health entities by educating the general population and physically active adults about dietary supplement use and adverse effects to ensure safe practices.

Introduction: Coronavirus disease 2019 (COVID-19) is a global pandemic with significant morbidity and mortality. The Saudi government adopted mandatory home quarantine and curfew hours for all residents, excluding essential service workers. During the lockdown, the public's fear of infection can adversely impact mental health, causing psychological distress. The objective of this research is to assess frequency of depression and obsessive-compulsive disorder (OCD) among the general population during COVID-19 pandemic in Saudi Arabia. Methodology: This was a cross-sectional study using the Patient Health Questionnaire (PHQ-9) and Obsessive-Compulsive Inventory-Revised assessment test (OCI-R) in Arabic and English languages distributed via social media platforms. Chi-square test was used with significance determined at p