Obesity is one of the most common chronic, non-infectious diseases in the world and our country, and it is characterized by excessive accumulation of fat tissue in the body and an increase in body weight. The increase in the number of obese people is an important global health problem. Obesity is associated with cardiometabolic and psychosocial comorbidities, and may also affect years of healthy life and reduce life expectancy. Numerous factors, such as biological predisposition, socioeconomic factors and environmental factors, interact and influence the development and maintenance of obesity. Excess adipose tissue in the body and its dysfunction is associated with inflammation and increased risk of metabolic, mechanical and mental complications. It is very important to monitor the incidence of obesity and its impact on the development of chronic non-communicable diseases and life expectancy due to the development and implementation of strategies to prevent the increase in the number of obese people.