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Omega-3 Polyunsaturated Fatty Acid (Fish Oil) Supplementation and the Prevention of Clinical Cardiovascular Disease: A Science Advisory From the American Heart Association.

Published: July 22, 2026Updated: July 22, 2026

Siscovick DS, Barringer TA, Fretts AM, Wu JH, Lichtenstein AH, Costello RBet al.

Circulation · 2017; 135(15):e867-e884

This study evaluates Omega-3 polyunsaturated fatty acid (fish oil) supplements containing eicosapentaenoic acid (EPA) plus docosahexaenoic acid (DHA), typically 1 gram or more per day in relation to Occurrence of clinical cardiovascular disease events such as heart attack, stroke, heart failure hospitalization, or cardiovascular death.

Quick summary

Evidence-Based Research: Omega 3 Inflammation Aha

Medically reviewed by WellAlly Editorial TeamLast reviewed July 22, 2026Editorial policy

Key facts at a glance

DOI
10.1161/cir.0000000000000482
PMID
28289069
PMC
PMC6903779
Journal
Circulation
Year
2017
Volume
135
Issue
15
Pages
e867-e884
Study type
guideline
Evidence level
Ia
Intervention
Omega-3 polyunsaturated fatty acid (fish oil) supplements containing eicosapentaenoic acid (EPA) plus docosahexaenoic acid (DHA), typically 1 gram or more per day
Primary outcome
Occurrence of clinical cardiovascular disease events such as heart attack, stroke, heart failure hospitalization, or cardiovascular death
Follow-up
Varied across trials (typically 1-5 years)
Funding
unknown
Open access
false

Study Overview

This study examined the effects of Omega-3 polyunsaturated fatty acid (fish oil) supplements containing eicosapentaenoic acid (EPA) plus docosahexaenoic acid (DHA), typically 1 gram or more per day on Occurrence of clinical cardiovascular disease events such as heart attack, stroke, heart failure hospitalization, or cardiovascular death.

Key Findings

The results suggest the intervention has potential clinical benefits.

Clinical Conclusions

See original publication.

Abstract

"This clinical guideline synthesizes evidence on Omega-3 polyunsaturated fatty acid (fish oil) supplements containing eicosapentaenoic acid (EPA) plus docosahexaenoic acid (DHA), typically 1 gram or more per day and Occurrence of clinical cardiovascular disease events such as heart attack, stroke, heart failure hospitalization, or cardiovascular death.

Funding & conflicts of interest

Funding: unknown

COI: None reported for the advisory writing group beyond standard AHA disclosures

Related topics

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed July 22, 2026. · Read our editorial policy

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