Research has been conducted on the relationship between gut microbiota and multiple sclerosis, with studies comparing the gut microbiota of multiple sclerosis patients to that of healthy controls. The findings suggest that multiple sclerosis patients have distinct gut microbiota and that gut dysbiosis may be associated with the disease. Additionally, some studies have explored potential treatments, including the reversal of dysbiosis through B-cell depletion, although the exact nature of the link between gut microbiota and multiple sclerosis is still being investigated.