Fermented foods benefit gut health by providing probiotics, which are live microorganisms that promote a balanced intestinal microbiome. Foods such as yogurt, sauerkraut, and kimchi are rich in beneficial bacteria that enhance digestion and nutrient absorption. These probiotics can help prevent or alleviate issues such as irritable bowel syndrome and constipation. Additionally, fermented foods can support the immune system and reduce inflammation in the gut. Including these foods in a balanced diet contributes to overall health, highlighting the essential role of gut microbiota in wellness.