Nutrition Reviews publishes authoritative and critical review articles (not original research) of current topics in nutrition science, dietetics, food science, experimental and clinical nutrition research, nutrition in medicine and food and nutrition legislation and policy. Biologic and practical nutritional implications of the topic should be clearly outlined. It is important that the reader learn not only about a particular topic, but why it is important and/or relevant to the broad field of nutrition. Nutrition Reviews readers are nutrition scientists, researchers, practitioners, and students. The readership is international with distribution to more than 75 countries. Lead Review Articles are comprehensive reviews of a broad topic; Special Articles are also comprehensive, but tend to deal with more focused topics; Topics in Clinical Nutrition focus only on clinical areas; Nutrition Grand Rounds present a case study accompanied by a brief literature review; Nutrition Science Policy articles address current topics in nutrition science as they relate to domestic and/or international policy issues; and Brief Critical Reviews discuss a current study in a relevant area of nutrition research and explain the findings within the context of the larger body of research on that topic.