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Alpha-Linolenic Acid and Cardiovascular Events: A Narrative Review
Camilla Bertoni1, Martina Abodi1, Veronica D'Oria2
1Department of Veterinary Sciences for Health, Animal Production and Food Safety, University of Milan, 20122 Milan, Italy.
Insights
Alpha-linolenic acid (ALA), an omega-3 fatty acid, can help lower cholesterol and triglycerides, reducing cardiovascular disease (CVD) risk. Dietary ALA also offers cardioprotective benefits, aiding in blood pressure management.
Area of Science:
- Nutrition Science
- Cardiology
- Public Health
Background:
- Cardiovascular diseases (CVDs) are the leading cause of global mortality.
- Drug therapy is a primary intervention, but alternative strategies are sought.
- Alpha-linolenic acid (ALA), an omega-3 fatty acid, is recognized for its cholesterol-lowering properties.
Purpose of the Study:
- To review the effects of ALA on cardiovascular health.
- To investigate the optimal omega-6/omega-3 ratio for beneficial effects.
- To assess ALA's role in lipid management and blood pressure regulation.
Main Methods:
- Literature review of studies on ALA and cardiovascular markers.
- Analysis of data concerning LDL-C, triglycerides, and blood pressure.
- Consideration of EFSA (European Food Safety Authority) statements.
Main Results:
- ALA favorably impacts LDL-C and triglyceride levels in adults and children.
- Dietary ALA contributes to blood pressure balance, offering anti-hypertensive effects.
- ALA demonstrates anti-atherosclerotic and cardioprotective properties.
Conclusions:
- Dietary ALA can be an effective alternative or complementary strategy to reduce CVD risk.
- Maintaining an appropriate omega-6/omega-3 ratio is crucial for cardiovascular benefits.
- ALA intake supports overall cardiovascular health through multiple mechanisms.
Abstract:
Cardiovascular diseases (CVDs) represent the leading cause of global mortality with 1.7 million deaths a year. One of the alternative systems to drug therapy to minimize the risk of CVDs is represented by alpha-linolenic acid (ALA), an essential fatty acid of the omega-3 series, known for its cholesterol-lowering effect. The main purpose of this review is to analyze the effects of ALA and investigate the relevant omega-6/omega-3 ratio in order to maintain functionally beneficial effects. Concerning the lipid-lowering preventive effects, ALA may favorably affect the values of LDL-C and triglycerides in both adult and pediatric populations. Furthermore, ALA has shown protective effects against hypertension, contributing to balancing blood pressure through customary diet. According to the 2009 EFSA statement, dietary ALA may contribute to reducing the risk of CVDs, thanks to anti-hypertensive, anti-atherosclerotic and cardioprotective effects.
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