A fad diet is a trendy dietary pattern that promises quick and easy weight loss. It has become popular among people due to increasing obesity and social media. The aim of the study was to analyze the use of fad diets among office workers who spend most of the day sitting at a desk. The research design was cross-sectional in 152 office workers aged over 18 years. The survey consisted of 24 questions, and four sections. Pearson chi-square, Fisher's exact test and logistic regression analysis were used for data analysis. Of the 50 (32.89%) participants who tried a fad diet, the majority were female (86%). The ketogenic diet was more likely to follow a fad diet by participants (40%). The influence of person to person (50%) was commonly reported as a motivating factor for using fad diets by participants who tried them. In addition, the majority of participants (68%) who adhered fad diets reported that they achieved the desired result. Fad diet users and non-users differed by gender (p = .003), satisfaction with current weight (p