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Obesity was mainly regarded as a disease of developed countries, but currently there is a growing rise in the population of patients with obesity in developing countries of Africa. A body mass index of 30 kg/m2 or higher is regarded as obesity, and this may be associated with comorbidities such as metabolic and cardiovascular diseases, orthopaedic and psychiatric conditions, and cancer. There is conclusive scientific evidence that shows that obesity is caused by complex psychosocial, genetic and environmental factors. Diet and exercise are not effective as sole management of severe obesity. Bariatric surgery is the most cost-effective definitive treatment for all classes of obesity, and the associated weight reduction causes improvement or complete resolution of obesity-associated comorbidity, improves the quality of life and reduces all-cause mortality. It is estimated that about 15% of adults in Nigeria are obese, and in the year 2023, it was reported that only 214 bariatric procedures were done locally, with 134 (62.6%) being gastric balloon insertions, 75 (35.1%) primary weight loss surgeries and 5 revisional surgeries (2.3%). In this article, we discussed the existing weight loss options in Nigeria, the current state of bariatric surgery and the need to improve the practice of bariatric surgery for obese Nigerians and complications of obesity.