By Dr. Liji Thomas, MD Reviewed by Lily Ramsey, LLM Apr 16 2025 Fermented foods—especially vegetables—are increasingly recognized for their positive impact on gut health, largely through their influence on the microbiome. A recent study published in Applied and Environmental Microbiology explored how fermented cabbage (commonly known as sauerkraut) supports gut barrier integrity, focusing on its soluble metabolites and its protective effects against epithelial damage in an in vitro model. Study: