Xavier obtained a B.S. from Zamorano University, a M.S. from the University of Vermont, and his Ph.D. from the University of Missouri. In 2012, Xavier moved to Toronto-Canada to complete his postdoctoral training in Immunometabolism at the University Health Network as a member of the University of Toronto Banting and Best Diabetes Center. Xavier joined the IBP Department in March of 2018 where his research program focuses on the role of the immune system on metabolic disease. Xavier is an avid long distance runner who trains year-round for the marathon distance.