Your gut contains trillions of bacteria that play a crucial role in keeping your immune system balanced. When this bacterial community becomes imbalanced (dysbiosis), it can lead to chronic inflammatory diseases like arthritis, inflammatory bowel disease, psoriasis, and lupus. Recent research shows that restoring a healthy gut microbiota through diet, probiotics, prebiotics, or fecal transplants may help treat these conditions by reducing inflammation and strengthening the gut barrier.