Obesity greatly increases the risks of developing diseases, including diabe
tes mellitus, hypertension, dyslipidaemia, coronary artery disease, and som
e cancers. At least one-third of Arabs are obese, as defined by body mass i
ndex (BMI) more than 30 kg/m(2), and this figure is rising steadily despite
increased interest in fitness. Women have particularly high rates of obesi
ty. Obesity is clearly associated with increased risk for mortality bur: th
ere has been controversy regarding optimal weight with respect to mortality
risk A review of recent studies on the prevalence of obesity among populat
ion of the Arabian Peninsula and the evaluation of the health risk of obesi
ty is presented in this paper. The prevalence of obesity ranges between 16-
25% in men and 17-48% in women. The most prevalent chronic diseases related
to obesity in these populations are diabetes, hypertension and coronary he
art disease (CHD).