Natural Factors SeaRich Omega-3 with Vitamin D3, HI Potency, Delicious Lemon Meringue, 6.76 fl oz (200 ml) supplement bottle
Natural Factors

SeaRich Omega-3 with Vitamin D3, HI Potency, Delicious Lemon Meringue, 6.76 fl oz (200 ml)

What We Researched
10 active ingredients analyzed · 3 inactive ingredients decoded · 5 brand certifications checked · 3 retailers compared · Last updated: Mar 2026
92
Product Score Excellent
88
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin D3 (cholecalciferol) (lanolin) (1000 IU) 25 mcg 125%
Fish Oil (anchovy, sardines and/or mackerel) 4370 mg **
Omega-3 Fatty Acids 2550 mg **
Eicosapentaenoic Acid (EPA)† 1500 mg **
Docosahexaenoic Acid (DHA)† 750 mg **
Bioavailability Very Good

Absorption Rating

  • Vitamin D3 (cholecalciferol) (lanolin) (1000 IU) Good
  • Fish Oil (anchovy, sardines and/or mackerel) Good
  • Omega-3 Fatty Acids Good
  • Eicosapentaenoic Acid (EPA)† Fair
  • Docosahexaenoic Acid (DHA)† Fair
Other Ingredients Excellent

Fillers & Additives

  • Natural source lemon flavors (lemon meringue, lemon oil)
  • Natural Vitamin E
  • Luo han guo (monk fruit) extract
Efficacy Excellent

Dosage Analysis

  • Vitamin D3 (cholecalciferol) (lanolin) (1000 IU) 25 mcg Effective
  • Fish Oil (anchovy, sardines and/or mackerel) 4370 mg High
  • Omega-3 Fatty Acids 2550 mg High
  • Eicosapentaenoic Acid (EPA)† 1500 mg Effective
  • Docosahexaenoic Acid (DHA)† 750 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Calories 40
Total Fat 4.5 g 6%‡
Saturated Fat 1.5 g 8%‡
Polyunsaturated Fat 2 g **
Cholesterol 25 mg 8%
Vitamin D3 (cholecalciferol) (lanolin) (1000 IU) 25 mcg 125%
Fish Oil (anchovy, sardines and/or mackerel) 4370 mg **
Omega-3 Fatty Acids 2550 mg **
Eicosapentaenoic Acid (EPA)† 1500 mg **
Docosahexaenoic Acid (DHA)† 750 mg **

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$31$30$29$28$26 Mar 12 $29.00$28.39
iHerb
Vitacost

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Natural Factors

Founded 1950 · Coquitlam, British Columbia, Canada · 390 products · naturalfactors.com

Certifications

5 certifications
B Corp Certified Verified Source
Usp Verified Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Usda Organic Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Verified Source
In House Testing — Verified Source

Violation History

5 incidents
Prop 65 Lead2025-10-31Source
Recall Hi Potency B Complex, RevitalX, Super Multi® IRON FREE2024-07-19Source
Lawsuit Products labeled as containing glucosamine sulfate did not contain the ingredient.2021Source
Prop 65 Lead2016-01-13Source
Recall Natural Factors L-Arginine 500mg2006-04-05Source
Related Supplements
Frequently Asked Questions
Is Natural Factors SeaRich Omega-3 with Vitamin D3, HI Potency a good supplement?

Natural Factors SeaRich Omega-3 with Vitamin D3, HI Potency, Delicious Lemon Meringue, 6.76 fl oz (200 ml) received a product quality score of 92/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 10 active ingredients with 40 servings per container. Of the 3 inactive ingredients, 1 are rated safe and 0 are flagged for review. The manufacturer, Natural Factors, holds a brand trust score of 88/100 with 5 verified certifications including B Corp Certified, Usp Verified, Fda Gmp Inspections, Non Gmo Project.

What are the ingredients in Natural Factors SeaRich Omega-3 with Vitamin D3, HI Potency?

Natural Factors SeaRich Omega-3 with Vitamin D3, HI Potency contains 10 active ingredients: Calories (40), Total Fat (4.5 g), Saturated Fat (1.5 g), Polyunsaturated Fat (2 g), Cholesterol (25 mg), Vitamin D3 (cholecalciferol) (lanolin) (1000 IU) (25 mcg), and 4 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Natural Factors SeaRich Omega-3 with Vitamin D3, HI Potency safe to take?

Natural Factors SeaRich Omega-3 with Vitamin D3, HI Potency, Delicious Lemon Meringue, 6.76 fl oz (200 ml) has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Natural Factors a trustworthy supplement brand?

Natural Factors receives a brand trust score of 88/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1950 and headquartered in Coquitlam, British Columbia, Canada, the company offers 390 products in their lineup. They hold 5 verified certifications including B Corp Certified, Usp Verified, Fda Gmp Inspections, Non Gmo Project. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Natural Factors has 5 historical regulatory incidents on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.