This cross-sectional study investigated the pattern (frequency and characteristics) of fast food consumption and its relationship with obesity. A total of 1173 Malaysian adults were interviewed based on a structural questionnaire. Fast food consumption was higher among young Malays and significantly associated with age, ethnicity, number of children in the household. The prevalence of respondents who consumed fast food at least once a week was 17%.Estimated 21.3% of respondents were obese. However, obesity was not associated with frequenting fast food restaurants. Because of the high prevalence of fast food consumption, there is a great need to educate further the community in making healthier food choicesKeywords: fast food,urban,obesity,consumption2398-4279 © 2017 The Authors. Published for AMER ABRA by e-International Publishing House, Ltd., UK. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, UniversitiTeknologi MARA, Malaysia.