The research area of dietary focuses on the impact of food and nutrition on human health and well-being. Researchers in this field study the relationship between diet, nutrients, and various health outcomes such as obesity, cardiovascular disease, diabetes, and cancer. They also investigate the effects of different dietary patterns, food groups, and specific nutrients on overall health and disease risk. Additionally, researchers may examine the role of dietary interventions in the prevention and treatment of various health conditions. This research area is important for developing evidence-based guidelines for optimal nutrition and promoting healthy eating habits in the general population.