Document Type : Original Article


1 Department of Nutrition, Science and Research Branch, Islamic Azad University, Tehran, Iran

2 Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Science, Tehran, Iran


This study was aimed to investigate the knowledge, attitude, and practice of sports club members as well as to conduct anthropometric measurements and dietary habits assessments. The study population consisted of members of sports clubs. The socio-economic status (SES) questionnaire, demographic information, dietary habits questionnaire, questionnaire of knowledge, attitude, and practice on sports supplements, anthropometric measurements, and physical activity questionnaires were investigated. Knowledge, attitude, and practice of sports clubs’ members were reported to be low in the sense that both men and women practiced bodybuilding more than other sports in all five regions of Tehran. Men and women reported exercising for fitness and weight loss respectively. Men took supplements to gain muscle mass while took them women more for weight loss. Protein and carbohydrate, branched-chain amino acid (BCAA), fiber, anabolic steroids, glutamine, arginine, and antioxidant supplements were consumed more frequently by men. The consumption rate of the supplement was high amongst the members of sports clubs; however, their knowledge and attitude were low. Additionally, the dietary habits of subjects were not suitable and their physical activity was not proper. According to anthropometric data, the prevalence of overweight and obesity was high. Regarding what is mentioned above, the authorities are required to include such issues in large-scale policies.