Following MS Virtual 2020, we had the pleasure of interviewing Mary Horton, MPH, from the University of California, Berkeley. Mary won the Best Young Investigator Oral Presentation Award at the conference for her work exploring the potential role of the gut microbiome in multiple sclerosis (MS). This is a fascinating area of research, which we know is of great interest to people living with MS. Therefore, we have no doubt that you will find this video incredibly interesting and informative. Finally, we take this opportunity to thank Mary for generously volunteering her time for this discussion.