Fermented dairy drinks are beverages made from milk that has been fermented using specific bacteria. This process transforms lactose, the sugar in milk, into lactic acid, giving these drinks a tangy flavor and thicker texture. Common examples include kefir and buttermilk, which are enjoyed for their unique taste and potential health benefits. These drinks are often rich in probiotics, which are beneficial bacteria that can support gut health. Fermented dairy drinks can be consumed on their own or used in recipes, making them versatile additions to a balanced diet. They are popular in many cultures around the world.