Omega-3 Dosing Recommendations
For general cardiovascular health in adults without documented coronary heart disease (CHD), take enough capsules daily to achieve at least 500 mg combined EPA+DHA, which based on your capsule strengths (350 mg + 235 mg + 90 mg + 597 mg = 1,272 mg total omega-3 per capsule) would be met with 1 capsule daily. However, the specific EPA and DHA content of your formulation is critical—if these four numbers represent different omega-3 components rather than EPA+DHA specifically, you need to verify the actual EPA+DHA content on your supplement label.
Understanding Your Supplement Composition
The dosing numbers you've provided (350-235-90-597 mg) likely represent:
- Different omega-3 fatty acid components (EPA, DHA, other omega-3s)
- Or possibly different capsule strengths in a multi-capsule product
Critical point: Only EPA and DHA content matters for cardiovascular benefit—not total omega-3 content 1.
Evidence-Based Dosing by Clinical Indication
For Primary Prevention (No Heart Disease)
- Target: 500 mg/day EPA+DHA combined 2
- This can be achieved through 2 servings of fatty fish weekly OR supplements 3, 1
- Minimum effective dose: 250 mg/day EPA+DHA 2, 4
For Documented Coronary Heart Disease
- Target: 1,000 mg (1 gram)/day EPA+DHA 1, 2
- Should preferably come from oily fish, but supplements are acceptable after physician consultation 3, 1
- This dose showed 20% reduction in overall mortality and 45% reduction in sudden death in the GISSI trial 5
For Hypertriglyceridemia (Triglycerides 150-499 mg/dL)
- Target: 2-4 grams/day EPA+DHA 3, 1, 2
- Must be provided as capsules under physician care 1
- Can lower triglycerides by 20-40% 1
- Important caveat: Recent 2025 AACE guidelines suggest EPA-only formulations over EPA+DHA combinations for hypertriglyceridemia with cardiovascular disease, as EPA+DHA showed no clinically meaningful cardiovascular benefit 6
For Severe Hypertriglyceridemia (≥500 mg/dL)
- Target: 2-4 grams/day EPA+DHA 2
- Requires physician supervision due to potential bleeding risk at high doses 1
Practical Dosing Algorithm
Step 1: Identify the actual EPA and DHA content per capsule from your product label (not just total omega-3)
Step 2: Calculate capsules needed based on your clinical situation:
- No heart disease: Aim for 500 mg EPA+DHA daily
- Known heart disease: Aim for 1,000 mg EPA+DHA daily
- High triglycerides: Aim for 2,000-4,000 mg EPA+DHA daily under physician care
Step 3: Verify you're not exceeding safety thresholds:
- Up to 5 g/day combined EPA+DHA is generally safe for long-term use 7
- Doses >3 g/day should be taken under physician supervision 1
Important Safety Considerations
Bleeding risk: Very high intakes may cause excessive bleeding in some individuals, though long-term supplementation up to 5 g/day has not increased spontaneous bleeding episodes 1, 7
Atrial fibrillation: Pharmacological doses (≥4 g/day) show a small but consistent increased risk of atrial fibrillation 6
LDL cholesterol: EPA+DHA combinations at 4 g/day may increase LDL cholesterol by ~3% in patients with very high triglycerides, though EPA-only formulations do not 8
Formulation matters: Triglyceride-form supplements are more bioavailable than ethyl ester forms 9. Most effective protocols use ≥1,000 mg/day for at least 12 weeks 9
Recent Evidence Shift (2025)
The most recent AACE guidelines 6 represent a significant change: they now suggest against EPA+DHA combinations for hypertriglyceridemia in patients with or at risk for cardiovascular disease, based on trials showing no meaningful cardiovascular benefit at 1.8 g/day. However, they conditionally support EPA-only formulations (icosapent ethyl) for this indication.
Bottom line: If you have cardiovascular disease or risk factors with elevated triglycerides, discuss with your physician whether an EPA-only prescription formulation (like icosapent ethyl 4 g/day) would be more appropriate than your current EPA+DHA supplement 6.