Swanson Omega-3 Fish Oil
vs
Nordic Naturals ProOmega
Supplement Comparison

  • EPA + DHA (combined EPA+DHA content - individual amounts of EPA+DHA not specified): Nordic Naturals ProOmega has 3.7× more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 8 nutrients compared
Bar chart: per-serving label amounts and listed forms for Swanson Omega-3 Fish Oil vs Nordic Naturals ProOmega.

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Frequently asked questions

Which active ingredients does Swanson Omega-3 Fish Oil have?

  • Vitamin D appears as Cholecalciferol (D3)
  • Eicosapentaenoic Acid (EPA) appears as Natural Triglycerides (TG)
  • Docosahexaenoic Acid (DHA) appears as Natural Triglycerides (TG)

Which active ingredients does Nordic Naturals ProOmega have?

  • Eicosapentaenoic Acid (EPA) appears as Re-esterified Triglycerides (rTG)
  • Docosahexaenoic Acid (DHA) appears as Re-esterified Triglycerides (rTG)

Which categories do Swanson Omega-3 Fish Oil and Nordic Naturals ProOmega belong to?

  • Fish Oil and Omega-3

What health concerns do Swanson Omega-3 Fish Oil and Nordic Naturals ProOmega address?

  • Anti-Inflammatory Support
  • Brain, Focus & Cognitive Function
  • Eye Health
  • Heart & Cardiovascular Health
  • Immune System Support
  • General Health
  • Joint & Bone Health

Which product has a higher amount of EPA + DHA (combined EPA+DHA content - individual amounts of EPA+DHA not specified) per serving?

  • Nordic Naturals ProOmega has the highest total amount of EPA + DHA (combined EPA+DHA content - individual amounts of EPA+DHA not specified): 1100 mg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Swanson Omega-3 Fish Oil: 1 softgel
    • Nordic Naturals ProOmega: 2 tablets
  • Vitamin D
    • This supplement has 1000 IU
    • Recommended Dietary Allowance in men: 600 IU
    • Recommended Dietary Allowance in women: 600 IU
    • Tolerable Upper Intake Level: 4000 IU

Last updated: February 3, 2026

  • Sources & Methodology: Nutrient data and forms are taken directly from Supplement Facts labels. Reviewed and standardized by the VIOscan Research Team. Learn more on the Methodology page.
  • We show the Recommended Dietary Allowance (RDA) when available. If no RDA exists, we show the Adequate Intake (AI). Tolerable Upper Intake Levels (UL) are used for upper limits. Unless otherwise noted, RDAs shown correspond to healthy adults aged 19–50 years and are sex-specific. Separate values exist for 51–70 years and >70 years, and pregnancy and lactation are excluded. All values come from the Dietary Reference Intakes (DRIs) published by the National Academies of Sciences, Engineering, and Medicine (NASEM), Food and Nutrition Board (FNB).
  • Transparency: We’re funded by our users. We don’t have sponsors or affiliate links, and we don’t sell supplements.
  • Editorial standards: we provide independent, impartial and objective data analysis.
  • This analysis is for educational purposes only. It is not a substitute for medical advice.
  • Questions? Read our Frequently Asked Questions or contact us, we’re here to help.
  • See an error? Report it through our Contact page.
  • Author: VIOscan Research Team