Source Naturals NKO™, Neptune Krill Oil, 500 mg, 30 Softgels supplement bottle
Source Naturals

NKO™, Neptune Krill Oil, 500 mg, 30 Softgels

What We Researched
9 active ingredients analyzed · 1 brand certification checked · 1 retailer compared · Last updated: Mar 2026
59
Product Score Poor
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Neptune Krill Oil (NKO™) 1 g
Phospholids 400 mg
Omega-3 fatty acids, total 240 mg
Eicosapentaenoic acid (EPA) 130 mg
Docosahexaenoic acid (DHA) 60 mg
Astaxanthin 360 mcg
Bioavailability Good

Absorption Rating

  • Neptune Krill Oil (NKO™) Good
  • Phospholids Fair
  • Omega-3 fatty acids, total Good
  • Eicosapentaenoic acid (EPA) Fair
  • Docosahexaenoic acid (DHA) Fair
  • Astaxanthin Fair
Other Ingredients Fair

Fillers & Additives

No inactive ingredient data available.

Efficacy Poor

Dosage Analysis

  • Neptune Krill Oil (NKO™) 1 g Effective
  • Omega-3 fatty acids, total 240 mg Under-dosed
  • Eicosapentaenoic acid (EPA) 130 mg Under-dosed
  • Docosahexaenoic acid (DHA) 60 mg Under-dosed
  • Astaxanthin 360 mcg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calories 10
Total Fat 1 g 1%*
Cholesterol 10 mg 3%
Neptune Krill Oil (NKO™) 1 g
Phospholids 400 mg
Omega-3 fatty acids, total 240 mg
Eicosapentaenoic acid (EPA) 130 mg
Docosahexaenoic acid (DHA) 60 mg
Astaxanthin 360 mcg

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$16$15$14$13$12 Mar 12 $14.00
iHerb

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

Brand Trust Report
Source Naturals

Founded 1982 · Scotts Valley, CA, USA · 837 products · sourcenaturals.com/

Certifications

1 certification
Fda Gmp Inspections Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source
In House Testing — Verified Source
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Frequently Asked Questions
Is Source Naturals NKO™, Neptune Krill Oil a good supplement?

Source Naturals NKO™, Neptune Krill Oil, 500 mg, 30 Softgels received a product quality score of 59/100 in GoodSupp's independent analysis, indicating several areas of concern that consumers should review. The product contains 9 active ingredients with 15 servings per container. The manufacturer, Source Naturals, holds a brand trust score of 66/100 with 1 verified certifications including Fda Gmp Inspections.

What are the ingredients in Source Naturals NKO™, Neptune Krill Oil?

Source Naturals NKO™, Neptune Krill Oil contains 9 active ingredients: Calories (10), Total Fat (1 g), Cholesterol (10 mg), Neptune Krill Oil (NKO™) (1 g), Phospholids (400 mg), Omega-3 fatty acids, total (240 mg), and 3 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Source Naturals NKO™, Neptune Krill Oil safe to take?

Source Naturals NKO™, Neptune Krill Oil, 500 mg, 30 Softgels 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 Source Naturals a trustworthy supplement brand?

Source Naturals receives a brand trust score of 66/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1982 and headquartered in Scotts Valley, CA, USA, the company offers 837 products in their lineup. They hold 1 verified certifications including Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. No regulatory violations or FDA warning letters were found in our research.

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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.