What is the recommended dosage for Omega-3 Fatty Acids (EPA/DHA)?

General: 1,000 mg combined EPA/DHA per day; Triglyceride Reduction: 2,000-4,000 mg/day (prescription-grade)

What are the side effects of Omega-3 Fatty Acids (EPA/DHA)?

Potential side effects include: Fishy aftertaste or burping, Mild gastrointestinal discomfort, Potential increased bleeding time at very high doses, May increase atrial fibrillation risk at doses >2g/day.

What are omega-3 EPA and DHA and how may they support heart health?

EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) are long-chain omega-3 fatty acids found in fatty fish. Large clinical trials including REDUCE-IT have shown that high-dose EPA (4g/day icosapent ethyl) significantly reduces cardiovascular events. EPA and DHA may lower triglycerides, reduce inflammation, and support healthy heart rhythm.

What dosage of omega-3 EPA/DHA has been studied for cardiovascular health?

For triglyceride reduction, clinical trials have used 2–4 grams of combined EPA+DHA daily. The REDUCE-IT trial used 4g/day of pure EPA (icosapent ethyl). The American Heart Association recommends 1g/day EPA+DHA for patients with coronary heart disease. General cardiovascular support studies use 1–2g daily.

What are the potential side effects of omega-3 EPA/DHA supplements?

Common side effects include fishy aftertaste, burping, and gastrointestinal discomfort. High doses (above 3g/day) may increase bleeding time and should be used cautiously with anticoagulants. The REDUCE-IT trial noted a small increase in atrial fibrillation with high-dose EPA. Enteric-coated capsules may reduce GI side effects.

Omega-3 Fatty Acids (EPA/DHA)

fatty_acid

Also known as: Fish Oil, Marine Omega-3, Eicosapentaenoic Acid, Docosahexaenoic Acid, EPA, DHA

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About

Omega-3 fatty acids, particularly EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid), are long-chain polyunsaturated fats from marine sources that support cardiovascular health through multiple mechanisms. EPA/DHA incorporate into cell membranes, modulate inflammatory signaling, lower plasma triglycerides, and improve endothelial function. The REDUCE-IT trial demonstrated that high-dose EPA (4g/day) reduced major adverse cardiovascular events by 25%.

How It Works

Long-chain polyunsaturated fatty acids that incorporate into cell membranes modulating inflammatory signaling via reduced arachidonic acid conversion to pro-inflammatory eicosanoids; lower plasma triglycerides by reducing hepatic VLDL production and increasing lipoprotein lipase activity; improve endothelial function by enhancing nitric oxide bioavailability; stabilize cardiac myocyte membranes reducing arrhythmia susceptibility through ion channel modulation.

Evidence For Conditions

Condition	Grade	Studies	Participants
High Triglycerides (Hypertriglyceridemia)	A	50	20000	View →
Coronary Artery Disease (CAD)	B	20	50000	View →
Cardiac Arrhythmia	B	15	10000	View →

Side Effects

Fishy aftertaste or burping
Mild gastrointestinal discomfort
Potential increased bleeding time at very high doses
May increase atrial fibrillation risk at doses >2g/day

Drug & Supplement Interactions

Anticoagulants and antiplatelet drugs (may increase bleeding risk at high doses)
Blood pressure medications (additive hypotensive effect)
Orlistat (may reduce omega-3 absorption)

Always inform your healthcare provider about all supplements you take.

Related Ingredients

Flaxseed Oil Krill Oil Omega-7 (Palmitoleic Acid)

Quick Facts

Dosage: General: 1,000 mg combined EPA/DHA per day; Triglyceride_Reduction: 2,000-4,000 mg/day (prescription-grade)
Forms: softgel liquid capsule enteric-coated
Natural Sources: Fatty fish (salmon, mackerel, sardines, anchovies), Algae, Krill, Fish roe, Grass-fed beef
Upper Limit: 5,000 mg/day combined EPA/DHA (FDA GRAS up to 3,000 mg/day from supplements)
Best Time: With meals containing fat for optimal absorption; divide doses >2,000 mg

Evidence Summary

High Triglycerides (Hypertriglyceridemia) A

Coronary Artery Disease (CAD) B

Cardiac Arrhythmia B

FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products and information on this website are not intended to diagnose, treat, cure, or prevent any disease. The evidence grades presented are based on our analysis of published peer-reviewed research and do not constitute medical advice. Always consult your healthcare provider before starting any supplement regimen.