Carlson EcoSmart Omega-3
vs
Douglas Laboratories E-400
Supplement Comparison

  • Vitamin E: Douglas Laboratories E-400 has 20× more
  • The image below shows:
    • Side-by-side charts with label nutrient amounts, per serving
    • Nutrient forms as listed on the label
    • 6 nutrients compared
Bar chart: per-serving label amounts and listed forms for Carlson EcoSmart Omega-3 vs Douglas Laboratories E-400.

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Frequently asked questions

Which active ingredients does Carlson EcoSmart Omega-3 have?

  • Vitamin E appears as d-Alpha Tocopherol
  • Eicosapentaenoic Acid (EPA) appears as Ethyl Esters (EE)
  • Docosahexaenoic Acid (DHA) appears as Ethyl Esters (EE)

Which active ingredients does Douglas Laboratories E-400 have?

  • Vitamin E appears as d-Alpha Tocopheryl Acetate

Which categories do Carlson EcoSmart Omega-3 and Douglas Laboratories E-400 belong to?

  • Fish Oil and Omega-3
  • Single Vitamin

What health concerns do Carlson EcoSmart Omega-3 and Douglas Laboratories E-400 address?

  • Anti-Inflammatory Support
  • Brain, Focus & Cognitive Function
  • Eye Health
  • Heart & Cardiovascular Health
  • Antioxidant Support

Which product has a higher amount of Vitamin E per serving?

  • Douglas Laboratories E-400 has the highest total amount of Vitamin E: 268 mg per serving

How do the serving sizes compare between the two supplements?

  • Serving size:
    • Carlson EcoSmart Omega-3: 2 softgels
    • Douglas Laboratories E-400: 1 softgel
  • Vitamin E
    • This supplement has 13.4 mg
    • Recommended Dietary Allowance in men: 15 mg
    • Recommended Dietary Allowance in women: 15 mg
    • Tolerable Upper Intake Level: 1000 mg
  • Vitamin E
    • This supplement has 268 mg
    • Recommended Dietary Allowance in men: 15 mg
    • Recommended Dietary Allowance in women: 15 mg
    • Tolerable Upper Intake Level: 1000 mg

Last updated: February 17, 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