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Introduction
The Multiple Risk Factor Intervention Trial (MRFIT) was a groundbreaking clinical trial conducted in the 1970s and 1980s. Its main objective was to investigate the relationship between various risk factors and the incidence of heart disease.
The study aimed to determine whether modifying risk factors, such as high blood pressure, high cholesterol levels, and smoking, could lead to a reduction in cardiovascular events.
The trial spanned several years, with participants being followed up for a period of approximately six years to assess the incidence of cardiovascular events and mortality. The primary outcome measures included coronary heart disease (CHD) mortality and overall mortality.
The MRFIT trial yielded several important findings that have significantly influenced our understanding of cardiovascular health and prevention strategies.
In this episode we take a look at why this is such seminal research, as well as the contribution of one of the greatest researchers ever in the field, Jeramiah Stamler.
Related resources
- Join the Sigma newsletter for free
- Subscribe to Sigma Nutrition Premium
- Become a member of Alan Flanagan’s Alinea Nutrition Education Hub
- Further reading:
- More episodes related to heart disease and lipids
- [01:37]Common claims and narratives
- [03:15]Historical context of dietary guidelines
- [21:57]Sugar industry influence on dietary research
- Glucose Peaks
- Some Pragmatic Considerations
The Hosts
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Dr. Alan Flanagan has a PhD in nutrition from the University of Surrey, where his doctoral research focused on circadian rhythms, feeding, and chrononutrition.
This work was based on human intervention trials. He also has a Masters in Nutritional Medicine from the same institution.
Dr. Flanagan is a regular co-host of Sigma Nutrition Radio. He also produces written content for Sigma Nutrition, as part of his role as Research Communication Officer.
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 Multiple Risk Factor Intervention Trial (MRFIT) was a groundbreaking clinical trial conducted in the 1970s and 1980s. Its main objective was to investigate the relationship between various risk factors and the incidence of heart disease.
The study aimed to determine whether modifying risk factors, such as high blood pressure, high cholesterol levels, and smoking, could lead to a reduction in cardiovascular events.
The trial spanned several years, with participants being followed up for a period of approximately six years to assess the incidence of cardiovascular events and mortality. The primary outcome measures included coronary heart disease (CHD) mortality and overall mortality.
The MRFIT trial yielded several important findings that have significantly influenced our understanding of cardiovascular health and prevention strategies.
In this episode we take a look at why this is such seminal research, as well as the contribution of one of the greatest researchers ever in the field, Jeramiah Stamler.
Connection to Previous Episodes
#493: The Keys Equation – How Dietary Fats Impact Blood Cholesterol
- In the previous episode we also discussed a seminal piece of work in the serum cholesterol – heart disease field. Namely, one of the important publications from Ancel Keys.
- This seminal paper examined the relationship between dietary fat intake and serum cholesterol levels.
- The researchers investigated how different types of fats in the diet affect cholesterol levels in a series of their previous tightly-controlled dietary experiments.
- You can find that episode page here.