Food intake is essential for the survival of a living organism. The brain controls this complex behavior by integrating information of several systems to achieve a stable body weight of the individual. Over the last decades, however, the number of overweight people has been steadily increasing. These individuals are often characterized by increased food consumption and, thus, have been associated with alterations in their control of food intake. In this chapter, we will review knowledge about the systems involved in the control of eating behavior and introduce how MEG can be used to learn more about the cognitive aspects of this behavior.