Probiotics contribute to gut health by enhancing the balance of beneficial bacteria in the digestive system. These live microorganisms can help prevent and treat various gastrointestinal issues, such as diarrhea and irritable bowel syndrome. Probiotics support the gut barrier, enhance immune function, and aid in the digestion of certain nutrients. Regular consumption of probiotic-rich foods like yogurt, fermented vegetables, and kefir can promote a healthy microbiome, which may influence overall health, including mood and mental well-being. Thus, probiotics are vital for maintaining an optimal gut environment.