Aim: The aim of this study was to measure the commonness of obesity among the visitors of Prince Sultan military medical city (PSMMC), Hospital, Riyadh.

Materials and Methods: This cross-sectional study was done from November 15, 2018, to February 15, 2019. A well-established questionnaire was prepared based on the literature. A total of 1489 participants of either sex participated in this study. The body mass index (BMI) scale measures the obesity.

Reuslts: This study has revealed that obesity among the young visitor of the Prince Sultan military medical city, Riyadh, was higher than the middle age and old age people. It was also observed that obesity was more prevailing in young males than young females. There is a need to educate these young people about the foreseeable effects of obesity comprising insulin resistance, diabetes, metabolic syndrome, hyperlipidemia, hypertension, and ischemic stroke, gastroesophageal reflux, cholelithiasis, osteoarthritis, many types of cancer, infertility, impotence, and polycystic ovarian syndrome.

Conclusion: The obesity awareness programs should also be conducted to lower down the percentage of obese people of the Riyadh city.

Keywords: Body Mass Index, Obesity, Overweight, PSMMC Hospital. Riyadh.