IL6 and irritable bowel syndrome: Elevated levels of inflammatory markers, such as interleukin-6 (IL-6), IL-10, and lipopolysaccharides (LPS)—a marker of bacterial translocation—found in IBS patients, especially in those with diarrhea-predominant IBS (IBS-D), significantly decreased during the LFD period, which coincided with improvements in both GI symptoms and psychological states [51].