Butyric acid is a short-chain fatty acid that is found in various animal fats and plant oils. It has a chemical formula of C4H8O2 and is known for its strong, unpleasant odor, often likened to rancid butter. This compound plays a crucial role in the digestive system, particularly in the colon, where it serves as an energy source for colon cells and helps maintain gut health. In addition to its natural occurrence, butyric acid is also produced during the fermentation of dietary fibers by gut bacteria. It has potential health benefits, including anti-inflammatory properties and the ability to support the immune system. Researchers are exploring its role in various health conditions, including inflammatory bowel disease and metabolic disorders.