Yeast extract is a natural ingredient made from the cells of yeast, often derived from Saccharomyces cerevisiae. It is produced by breaking down yeast cells through a process called autolysis, which releases proteins, vitamins, and minerals. Yeast extract is commonly used as a flavor enhancer in various foods, providing a savory taste similar to that of broth or meat. In addition to its flavoring properties, yeast extract is rich in B vitamins and is often used in vegetarian and vegan products as a source of nutrients. It can be found in soups, sauces, snacks, and spreads, making it a versatile ingredient in many culinary applications.