Bile acids are a group of steroid acids found in the bile of mammals. They play a crucial role in the digestion and absorption of fats in the small intestine. Bile acids are synthesized in the liver from cholesterol and are stored in the gallbladder until they are released into the small intestine to aid in the emulsification and absorption of fats. Research in the field of bile acids focuses on their role in lipid metabolism, their potential as biomarkers for various diseases, and their therapeutic potential in treating conditions such as liver disease, obesity, and diabetes. Studies also explore the impact of bile acids on gut microbiota and their role in regulating various metabolic pathways in the body.