Joel Faintuch is a gastrointestinal surgeon, and former International Guest Fellow of the American College of Surgeons. He is Honorary Fellow of three Surgical Societies, and has served as Visiting Professor at the University of Maastricht. He was the pioneer of Parenteral and Enteral Nutrition in Brazil and South America, and a founding member of three medical societies. In the last years, his focus has been in the Intestinal Microbiome. Joel Faintuch is the author of over 250 articles in peer-reviewed journals, along with 10 books, three theses, and over 200 chapters in books, and other publications.