[Obesity: lack of moral fibre of doctors, patients or politicians?].

Obesity is the most important avoidable cause of death. It is associated with many chronic illnesses, such as diabetes, hypertension, sleep apnoea and several cancers. Although bariatric surgery is effective in treating obesity and associated health problems, it is not the solution of this health issue. What should doctors do to prevent obesity in our society? Politics and the government play a leading role in any necessary behavioural change in society. Other countries have taken effective measures, such as better information on food and food products, sugar and fat taxes and stimulating walking or cycling instead of driving.