Obsession with the physique and appearance is a by-product of consumer societies. As such, fitness and slimming have now become major concerns of Iranian females. This study endeavors to elaborate on information-seeking behaviors among female students of Isfahan University of Medical Sciences concerning fitness. This study conducted in 2018, employs a qualitative approach using conventional content analysis. The research population includes female students of Isfahan University of Medical Sciences, 16 of whom were selected with use of purposive sampling. Data were collected through face-to-face semi-structured interviews and their trustworthiness was confirmed by the criteria of ‘credibility’, ‘confirmability’, ‘dependability’, and ‘transferability’ proposed by Guba and Lincoln. Results reveal four sub-categories and nineteen codes on information-seeking behavior. Sub-categories and codes including information-seeking motivations (achieving physical health, physical appearance, social acceptability, self-confidence, family and friends’ pressure) information resources (electronic information resources, social media, printed information resources, doctors and nutritionists, family and friends, traditional & Islamic medicine, radio and TV), information validation (asking the doctors and specialists, matching the information with scientific references, consulting with friends and relatives) and obstacles to seeking information (lack of time, high costs, distrust, access limitation). by increasing the students’ informational and media literacy, providing authentic and low-cost online resources of information and specialized TV programs, the damages rooted in using invalid information resources concerning fitness can be substantially diminished.