Robynne Chutkan, M.D., is one of the most recognizable gastroenterologists working in America today. Dr. Chutkan has a B.S. from Yale and an M.D. from Columbia, and operates and teaches in the gastroenterology department at Georgetown University Hospital. An avid snowboarder, marathon runner, and Vinyasa yoga practitioner, she is dedicated to helping her patients live not just longer, but better lives. Her latest book, out in August, isThe Microbiome Solution.