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Introduction
The Portfolio diet is a nutritional approach that has garnered attention for its ability to reduce blood lipids and thus improve cardiovascular health.
While past intervention trials have demonstrated significant reductions in blood lipids, a critical aspect often overlooked is the long-term impact, both in terms of adherence and disease outcomes.
A recent study aimed to address this by looking at disease risk across three cohorts: the Nurses’ Health Study I, Nurses’ Health Study II, and the Health Professionals Follow-up Study.
The study made use of a Portfolio Diet Score (PDS), a comprehensive metric that evaluates the diet’s efficacy based on specific components.
These components include positive rankings for plant proteins (especially from legumes), nuts and seeds, viscous fiber sources, phytosterols (mg/day), and plant monounsaturated fat sources. Conversely, the PDS negatively ranks foods high in saturated fat and cholesterol.
In this episode, Dr. Andrea Glenn, the lead author of this study, discusses the intricacies of the research, providing insights into its findings and shedding light on how these findings resonate within the broader landscape of literature.
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- [01:37]Common claims and narratives
- [03:15]Historical context of dietary guidelines
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Guest Information
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Her main research interests include addressing questions of public health and clinical importance in relation to dietary patterns and cardiometabolic disease risk, particularly cardiovascular disease and type 2 diabetes, and healthy aging.
She is currently working on the role of the cholesterol-lowering portfolio diet in preventing cardiovascular disease, incorporating traditional epidemiological analyses, clinical trial data, and metabolomics.
Danny Lennon has a master’s degree (MSc.) in Nutritional Sciences from University College Cork, and he is the founder of Sigma Nutrition.
Danny is currently a member of the Advisory Board of the Sports Nutrition Association, the global regulatory body responsible for the standardisation of best practice in the sports nutrition profession.
Introduction to this Episode
The Portfolio diet is a nutritional approach that has garnered attention for its ability to reduce blood lipids and thus improve cardiovascular health.
While past intervention trials have demonstrated significant reductions in blood lipids, a critical aspect o en overlooked is the long-term impact, both in terms of adherence and disease outcomes.
A recent study aimed to address this by looking at disease risk across three cohorts: the Nursesʼ Health Study I, Nursesʼ Health Study II, and the Health Professionals Follow-up Study.
The study made use of a Portfolio Diet Score (PDS), a comprehensive metric that evaluates the dietʼs efficacy based on specific components.
These components include positive rankings for plant proteins (especially from legumes), nuts and seeds, viscous fiber sources, phytosterols (mg/day), and plant monounsaturated fat sources. Conversely, the PDS negatively ranks foods high in saturated fat and cholesterol.
In this episode, Dr. Andrea Glenn, the lead author of this study, discusses the intricacies of the research, providing insights into its findings and shedding light on how these findings resonate within the broader landscape of literature.
Connection to Previous Episodes
439: Prof. David Jenkins – Lipid-Lowering Diets
- It was work by Prof. David Jenkins and colleagues that first put forward the idea of a “portfolio” of specific nutrients/foods that could additionally lower LDL-C.
- This became known as the Portfolio Diet, the subject of the current episode with Dr. Glenn.
- The four primary pillars of this portfolio diet are: soy protein, viscous fibers, nuts, and plant sterols.
