Dietary protein is a research area that focuses on the importance of protein in the human diet and its impact on health and performance. Protein is an essential macronutrient that plays a crucial role in the growth and repair of tissues, the production of enzymes and hormones, and the maintenance of a healthy immune system. Research in this area explores the optimal amount of protein needed in the diet, sources of protein, timing of protein consumption, and the effects of different types of protein on health outcomes. Studies also investigate the role of protein in weight management, muscle building, and athletic performance. Overall, research in the field of dietary protein seeks to improve our understanding of the role of protein in the diet and how it can be optimized to promote health and well-being.