Branched-chain fatty acids (BCFAs) are a type of fatty acid characterized by a branched structure in their carbon chain. Unlike straight-chain fatty acids, BCFAs have one or more branches, which can influence their physical and chemical properties. They are found in various natural sources, including certain types of bacteria and dairy products. BCFAs play a role in various biological processes, including energy metabolism and cell signaling. They are also studied for their potential health benefits, such as improving gut health and reducing inflammation. Research continues to explore their significance in nutrition and overall health.