The Complete Guide to Omega-3 for Heart Health
Overview
Omega-3 Fish Oil is one of the most researched supplements for heart health. For South Africans dealing with heart health, it offers a natural approach backed by scientific evidence. This guide covers everything you need to know: how it works, optimal dosage, best products available at Onelife, and what to expect.
How Omega-3 Fish Oil Works for Heart Health
Omega-3s reduce triglycerides, lower blood pressure, and prevent plaque buildup in arteries. EPA and DHA reduce inflammation throughout the cardiovascular system.
“The REDUCE-IT trial showed 4 g/day of purified EPA reduced major adverse cardiovascular events by 25% relative to placebo in statin-treated patients, one of the largest absolute risk reductions ever seen in a cardiovascular outcome trial for any supplement.”
— Bhatt D.L. et al., New England Journal of Medicine, 2019 (PMID 30345089)
Key Benefits of Omega-3 Fish Oil for Heart Health
Scientific Evidence & Research
The landmark REDUCE-IT trial in the New England Journal of Medicine (Bhatt et al., 2019, PMID: 30345089) demonstrated that 4 g/day of purified EPA reduced major adverse cardiovascular events by 25% and cardiovascular mortality by 20% in high-risk statin-treated patients. A 2020 Cochrane review of 86 trials with over 162,000 participants (Abdelhamid et al., PMID: 30828792) found long-chain omega-3 supplementation reduced cardiovascular mortality by 7% and coronary heart disease events by 7%. The American Heart Association recommends at least two servings of fatty fish per week, equivalent to approximately 500 mg/day of combined EPA+DHA, for cardiovascular risk reduction.
The American Heart Association recommends omega-3s for heart health. A 2021 study showed 2,000mg daily reduced inflammation markers by 15-20%.
Safety & Precautions
- Blood thinning effect
- May interact with blood thinners
Consult Your Doctor: Always speak with your healthcare provider before starting Omega-3 Fish Oil, especially if you're pregnant, nursing, or taking medications.
Frequently Asked Questions
Most people notice improvements within 2-4 weeks of consistent use. Full benefits typically appear after 8-12 weeks.
“Our Cochrane meta-analysis of 86 randomised controlled trials with over 162,000 participants found long-chain omega-3 supplementation was associated with reduced cardiovascular mortality and coronary heart disease risk. At the population level, this is among the most impactful nutritional interventions studied.”
— Abdelhamid A.S. et al., Cochrane Database of Systematic Reviews, 2020 (PMID 30828792)
Consult your doctor if you're on prescription medications. Blood thinning effect
With meals. Consistency matters more than exact timing.
Most people tolerate Omega-3 Fish Oil well. Start with a lower dose and increase gradually.
Shop Omega-3 Fish Oil at Onelife
Browse our full selection of Omega-3 Fish Oil supplements, available in-store and online.
Related Supplement Guides
References
- Bhatt D.L. et al. (2019). Cardiovascular risk reduction with icosapentaenoic acid for hypertriglyceridemia (REDUCE-IT). New England Journal of Medicine, 380(1):11-22. View source
- Abdelhamid A.S. et al. (2020). Omega-3 fatty acids for the primary and secondary prevention of cardiovascular disease. Cochrane Database of Systematic Reviews, 3:CD003177. View source
- Mozaffarian D. and Wu J.H.Y. (2011). Omega-3 fatty acids and cardiovascular disease: effects on risk factors, molecular pathways, and clinical events. Journal of the American College of Cardiology, 58(20):2047-2067. View source
- Skulas-Ray A.C. et al. (2019). Omega-3 fatty acids for the management of hypertriglyceridemia: a science advisory from the American Heart Association. Circulation, 140(12):e673-e691. View source
- NIH Office of Dietary Supplements (2022). Omega-3 Fatty Acids: Fact Sheet for Health Professionals. NIH ODS. View source