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Rate My Professor Deborah O’Connor

University of Toronto

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5.04/30/2025

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About Deborah

Deborah O’Connor is the Earle W. McHenry Professor and Chair of the Department of Nutritional Sciences in the Temerty Faculty of Medicine at the University of Toronto. She earned her PhD in Nutritional Sciences from the University of Illinois in 1989, MS in Nutritional Sciences from the University of Illinois in 1986, BASc in Applied Human Nutrition from the University of Guelph in 1983, and completed a clinical dietetic internship at Kingston General Hospital in 1984, qualifying as a Registered Dietitian. Her research focuses on human milk composition and fortification for preterm infants, factors influencing folate and one-carbon nutrient status in women, infants, and children, maternal diet effects on lactation, and strategies to promote human milk feeding in vulnerable populations such as very low birth weight infants. Career appointments include Senior Associate Scientist in the Translational Medicine Program at the Hospital for Sick Children since 2013, Scientific Associate Staff in the Department of Pediatrics, Division of Neonatology at Mount Sinai Hospital since 2016, Director of Clinical Dietetics and Breastfeeding Support at the Hospital for Sick Children from 2000 to 2012, and Associate Chief of Academic and Professional Practice until 2013. She currently chairs the Advisory Board for the Rogers Hixon Ontario Human Milk Bank at Mount Sinai Hospital.