Atopic dermatitis, a chronic disease with no cure, currently affects almost one-fifth of the population of industrialized nations. Treatment can be challenging for physicians and patients alike. Children are commonly affected, making it even more difficult to find safe therapeutic options, especially in severe disease. Interest in diet and nutrition has increased during the last few years. Nutritional interventions are both intriguing and accessible for many patients. Given the recent expansion of the field of nutrition in the realm of medicine and in popular culture, it is important for the dermatologist to be knowledgeable about the risks and benefits of nutritional interventions. This contribution reviews the current literature on the role of nutrition in atopic dermatitis, from dietary restriction to dietary supplementation, from traditional interventions such as vitamins and minerals to the emerging fields of probiotics and essential fatty acids, and from the prenatal period through infancy and adulthood.