The Gut Microbiota in Health and DiseaseAn accessible overview of the varied microorganisms of the gut The human gut contains an extraordinary array of microorganisms existing in intricate symbiosis with the body. The gut microbiota plays a crucial role in maintaining overall gut health and warding off disease. With up to 15% of the global population suffering from Irritable Bowel Syndrome (IBS) caused by improper composition of gut microbiota, understanding these organisms and their vital