Background: Sasang Constitutional Medicine (SCM) is a component of Korean traditional medicine that classifies humans into four categories, according to their constitution (Taeyangin, Taeumin, Soyangin and Soeumin). We are unaware of previous assessments of SCM in non-Asian race groups. Objectives: To quantify body composition components in three race groups and to determine whether SCM has an independent effect on body composition components. Design: A cross-sectional evaluation of 76 adults (28 Caucasian, 21 African-American, 27 Asian). Body composition was estimated using dual energy x-ray absorptiometry. Results: SCM component had a significant effect on weight, fat, and lean mass regardless of race group (p <0.001).