Today, socio-demographic and lifestyle variables have more influence on body mass and composition. A discrepancy between the energy consumed through food and the energy consumed expended through physical exercise leads to obesity. It affects around 135 million people in India and the United States, including 39.8% of adults and 18.5% of kids. Obesity exacerbates hundreds of new severe problems, most of which are incurable. The BMI and other measurements may be used to test for obesity. Obesity is treated with a mix of medications. Multiple clinical trials have shown that several medications are utilized to treat obesity in conjunction with lifestyle, nutritional, and behavioral changes. Orlistat has been determined to be the most preferred therapy for obesity.