Abstract
                 Background: Pharmacists can help patients to make informed and safe choices of dietary supplements.  Aims and Objectives: According to the importance of pharmacists’ knowledge about dietary supplements and the effect  of this knowledge on their attitude and performance, this study was conducted to determine the knowledge, attitude, and  performance (KAP) of pharmacists toward these supplements. Materials and Methods: This cross-sectional study was  conducted by a descriptive-analytical approach in Shiraz, the largest metropolis in south of Iran, in 2015. Data were collected  using a questionnaire consisting 33 questions of KAP assessment that its validity and reliability were approved by a previous  study. Data were analyzed using One-sample t-test, independent t-test, One-way analysis of variance, and Pearson correlation  at the significance level of 0.05. Results: The results showed that the average of the attitude score had a significant difference  between male and female pharmacists (P < 0.05) but there were no significant relationships between other demographic  characteristics and the mean of KAP analysis. Other findings demonstrated a significant relationship between KAP of the  pharmacists toward supplements. The relationship between knowledge and performance was stronger than the relationship  between knowledge and attitude (r = 0.47). Conclusions: Our results implied that pharmacists with higher knowledge have  a better attitude and performance toward the dietary supplements, so it is recommended to redesign the training courses for  pharmacists at the top task of policymakers and administrators of health and pharmaceutical system of the country.