Book excerpt: 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. Diet, Brain, Behavior: Practical Implications presents the work of a diverse group of scientists who collectively explore the broad scope of research in the field. The subject matter of each chapter in this volume was chosen to ensure the current or potential for further applicability to practical, applied issues. Topics discussed include: Concepts of mental energy and fatigue The dangers of obesity and its effect on behavior Exercise, dietary restriction, and supplements for weight loss The effects of caffeine, creatine, theanine, B vitamins, and other dietary supplements on brain functioning and behavior The reward deficiency hypothesis and eating disorders The importance of maintaining proper fluid intake The effects of eating breakfast on performance The role of diet in pain sensitivity During the past decade, there has been an explosion in research and publications in this field. This collection of contributions represents the cutting edge of current research and new advancements in this area. The book provides essential information to those working in a diverse range of fields, including nutrition, neuroscience, psychology, and exercise physiology as well as medicine, dietetics, and occupational therapy.