As the field of nutritional neuroscience has grown, both the scientific community and the general population have expressed a heightened interest in the effect of nutrients on behavior. Topics discussed in this volume include the concepts of mental energy and fatigue, the dangers of obesity and its effect on behavior, weight loss methods, and the effects of dietary supplements on brain functioning and behavior. It also examines the reward deficiency hypothesis and eating disorders, the importance of maintaining proper fluid intake, the effects of eating breakfast on performance, and the role of diet in pain sensitivity.