Dietary fat is a research area that focuses on the role of different types of fats in the diet and their effects on health. This includes studying the impact of saturated fats, unsaturated fats, trans fats, and omega-3 fatty acids on various aspects of health, such as cardiovascular disease, obesity, and metabolic syndrome. Researchers investigate how the consumption of different types of fats influences factors like cholesterol levels, inflammation, and insulin sensitivity. Overall, the goal of research in this area is to better understand the relationship between dietary fat intake and health outcomes in order to inform dietary guidelines and recommendations.