Intestinal bacteria, also known as gut microbiota, are microorganisms that live in the digestive tract. They play a crucial role in breaking down food, absorbing nutrients, and supporting the immune system. A balanced community of these bacteria is essential for maintaining overall health. These bacteria can be beneficial or harmful. Beneficial bacteria, such as Lactobacillus and Bifidobacterium, help digest food and produce vitamins. On the other hand, an imbalance, often caused by poor diet or antibiotics, can lead to digestive issues and other health problems. Maintaining a healthy gut microbiome is important for well-being.