Bariatric surgery is recommended for individuals with a body mass index (BMI) over 40, or a BMI over 35 with obesity-related diseases such as type 2 diabetes or high blood pressure, who have not been able to lose weight with other treatment methods. However, each case should be evaluated individually, considering the risks and benefits of
surgery. These procedures are based on modifying the digestive system to limit the amount of food a person can consume and/or nutrient absorption in the body.