The aim was to investigate the effect of obesity on academic grades among Saudi female medical students. This cross sectional study was conducted in the Department of Plastic Surgery, College of Medicine, King Saud University, Riyadh, Saudi Arabia during the period November 2014 to June 2015. In all 191 second and third year female medical students with an average age of 21.31 years and body mass indices 15-40 were included. An English language questionnaire was established to obtain the information about age, gender, body mass index, level of study and the academic grades [Grade Point Average-GPA]. Female medical students with BMI 21-25 and 26-30 achieved high GPA while female medical students with higher BMI 31-35 and greater than 36 obtained low GPA. High BMI in female medical students impair the academic performance. The academic institutes must establish extra-curricular physical fitness policies to minimize the obesity and achieve better health and academic outcomes.
Keywords: Academic grades, Obesity, Body Mass Index (BMI)..