Öz
Most people make many choices regarding eating, physical activity habits. In this context, the behavioral economy is stepped in scopes such as what to eat, when to eat, how much activity is done, at what intensity. Obesity is theoretically the result of calorie imbalance, that is, the calorie intake is above the expended calorie. Therefore, obesity is one of the most suitable application areas for behavioral economics. According to the behavioral economy, physical activity and food consumption habits should not be left to the individual's choice and should be organized for struggle to obesity. Because environmental conditions and wrong choice decisions should be considered to be effective in individuals' choices. Obesity arises as a result of inability. It is an inevitable requirement to acquire the right nutritional habits and regular physical activity habits. In this study, since obesity is individual problem, it is focused on how individuals can change their behavior in an economic framework. Especially, this study can be important and guide in terms of interventions and policies to be created for control obesity and improve the living conditions of individuals.