Fatty acid metabolism is the process by which the body breaks down and synthesizes fatty acids to produce energy and maintain essential functions in the body. This complex metabolic pathway involves the breakdown of dietary fats into fatty acids and glycerol, as well as the synthesis of new fatty acids from carbohydrates and proteins. Fatty acids serve as a major energy source for the body, especially during times of fasting or low carbohydrate intake. They are also essential for the formation of cell membranes, hormone production, and immune function. Dysregulation of fatty acid metabolism has been linked to various metabolic disorders such as obesity, diabetes, and cardiovascular disease. Research in the field of fatty acid metabolism focuses on understanding the molecular mechanisms involved in the regulation of fatty acid synthesis, oxidation, and storage, as well as the impact of dietary factors and genetic variations on these processes. This research has important implications for the development of new treatments and interventions for metabolic and cardiovascular diseases.