Probiotics are beneficial bacteria that play a crucial role in maintaining gut health. They help balance the gut microbiome by promoting the growth of healthy bacteria and inhibiting harmful ones. This balance aids in disease prevention and supports digestion, nutrient absorption, and immune function. Probiotics can also reduce symptoms of digestive disorders, such as irritable bowel syndrome and constipation. Additionally, a healthy gut microbiome has been linked to improved mood and mental health through the gut-brain axis.