Bacteroides is a genus of bacteria that primarily resides in the intestines of humans and other animals. These bacteria play a crucial role in breaking down complex carbohydrates and fibers, aiding in digestion and nutrient absorption. They are anaerobic, meaning they thrive in environments without oxygen. In addition to their digestive benefits, Bacteroides can influence the immune system and maintain gut health. However, an imbalance in these bacteria can lead to health issues, including infections or inflammatory conditions. Research continues to explore their role in overall health and disease management.