Gut bacteria, also known as gut microbiota, are tiny 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 influenced by various factors, including diet, lifestyle, and medications. A diverse range of gut bacteria is beneficial, as it helps prevent digestive issues and supports human health. Disruptions in this balance can lead to problems like irritable bowel syndrome or obesity.