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Aug 9, 2025

DNS Researchers Explore Portfolio Diet’s Role in Cardiometabolic Health in New Book Chapter

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Researchers from the Department of Nutritional Sciences, University of Toronto (Meaghan E. Kavanagh, Laura Chiavaroli, John L. Sieveniper, David J. A. Jenkins) have co-authored a significant chapter in the Handbook of Public Health Nutrition, focusing on the "Portfolio Diet" and its impact on the prevention and management of type 2 diabetes mellitus (T2D) and cardiovascular disease (CVD). This comprehensive review synthesizes evidence from randomized controlled trials and cohort studies, highlighting the efficacy of the Portfolio Diet in improving key cardiometabolic risk factors.

The chapter, titled "Portfolio Diet for Prevention and Management of Type 2 Diabetes Mellitus and Cardiovascular Disease," emphasizes the diet's emphasis on cholesterol-lowering foods, including nuts, seeds, plant proteins, viscous fibers, plant sterols, and monounsaturated fatty acids. Clinical trials have demonstrated its ability to reduce LDL cholesterol, blood pressure, and blood glucose levels, while cohort studies associate adherence with a lower risk of T2D and CVD.

Despite its inclusion in clinical guidelines, the chapter notes barriers to widespread adoption, such as limited access to nutrition counseling and digital tools. To address these challenges, the researchers have developed the Portfolio Diet app, a digital platform designed to support individuals in adhering to the Portfolio Diet, thereby promoting sustainable dietary changes and enhancing cardiometabolic health.

This publication underscores the University of Toronto's commitment to advancing public health nutrition through evidence-based research and innovative solutions.