1. Department of Nutritional Sciences (L.W.J., Z.L., R.P.B., A.J.H.), University of Toronto, Toronto, ON M5S 3E2, Canada
2. Centre for Studies in Family Medicine (S.B.H.), University of Western Ontario, London, ON N6G 2M1, Canada
3. Division of Endocrinology (R.R., B.Z.), University of Toronto, Toronto, ON M5S 1A8, Canada
4. Lunenfeld Tanenbaum Research Institute (R.R., B.Z.), Mt Sinai Hospital, Toronto, ON M5T 3L9, Canada
5. Department of Physiology (A.G.), University of Toronto, Toronto, ON M5S 1A8, Canada
6. Dalla Lana School of Public Health (A.J.H.), University of Toronto, Toronto, ON M5T 3M7, Canada