Ken Croitoru

Ken Croitoru is a Canadian gastroenterologist who works at Mount Sinai Hospital in Toronto, a scientist at the Lunenfeld-Tanenbaum Research Institute, and a professor in the Department of Medicine at the University of Toronto. He is best known for his leadership of the Genetic, Environmental, Microbial (GEM) Project, a comprehensive research initiative aiming to understand the triggers of Crohn's disease.

Career Croitoru is a 1981 graduate of McGill University Faculty of Medicine and Health Sciences. He did post-doctoral training with John Bienenstock at McMaster University Medical School.

Croitoru is a gastroenterologist at Mount Sinai Hospital, and also serves as a scientist at the Lunenfeld-Tanenbaum Research Institute.

Croitoru is the lead investigator and architect of the GEM Project, which was launched in 2008. The project's purpose is to uncover the potential triggers of Crohn's disease by monitoring first-degree relatives of Crohn's patients. These individuals do not have the disease themselves but are at a higher risk of developing it.