NutriCology Natural Source E supplement bottle
NutriCology

Natural Source E Review

What We Researched
2 active ingredients analyzed · 3 inactive ingredients decoded · 4 brand certifications checked · Last updated: Aug 2026
93
Product Score Excellent
99
Brand Score Excellent

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin E (as D-Alpha-Tocopherol, Mixed Tocopherols) 400 IU 1333%
Soybean Oil 20 mg
Bioavailability Excellent

Absorption Rating

  • Vitamin E (as D-Alpha-Tocopherol, Mixed Tocopherols) Good
Other Ingredients Excellent

Fillers & Additives

  • Gelatin
  • Glycerin
  • Water
Efficacy Very Good

Dosage Analysis

  • Vitamin E (as D-Alpha-Tocopherol, Mixed Tocopherols) 400 IU High

Supplement Facts

Ingredient Amount % Daily Value
Vitamin E (as D-Alpha-Tocopherol, Mixed Tocopherols) 400 IU 1333%
Soybean Oil 20 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Glycerin Safe

Retains moisture and helps dissolve ingredients in softgels and liquids.

Water Safe

Dissolves and carries water-soluble ingredients.

Brand Trust Report
NutriCology

Founded 1979 · Salt Lake City, UT, USA · 317 products · nutricology.com/

Certifications

4 certifications
Consumerlab Verified Source
Fda Gmp Inspections Verified Source
Nsf Gmp Verified Source
NSF Certified Verified

Transparency

5 claims
Third Party Testing Claim — Verified Source
Coa Availability — Verified Source
Testing Lab Disclosure — Claimed Source
In House Testing — Verified Source

Violation History

4 incidents
Prop 65 Lead2011-07-19Source
Prop 65 Lead2011-01-14Source
Lawsuit Failure to provide clear and reasonable warnings regarding exposure to lead in various supplement products.2011Source
Lawsuit Details not fully available in search results.2006Source
Related Supplements
Frequently Asked Questions
Is NutriCology Natural Source E a good supplement?

NutriCology Natural Source E received a product quality score of 93/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 2 active ingredients with 250 servings per container. All 3 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, NutriCology, holds a brand trust score of 99/100 with 4 verified certifications including Consumerlab, Fda Gmp Inspections, Nsf Gmp, NSF Certified.

What are the ingredients in NutriCology Natural Source E?

NutriCology Natural Source E contains 2 active ingredients: Vitamin E (as D-Alpha-Tocopherol, Mixed Tocopherols) (400 IU), Soybean Oil (20 mg). Notable high-dose ingredients include Vitamin E at 1333% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is NutriCology Natural Source E safe to take?

NutriCology Natural Source E has been analyzed for ingredient safety across all its components. All 3 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is NutriCology a trustworthy supplement brand?

NutriCology receives a brand trust score of 99/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1979 and headquartered in Salt Lake City, UT, USA, the company offers 317 products in their lineup. They hold 4 verified certifications including Consumerlab, Fda Gmp Inspections, Nsf Gmp, NSF Certified. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: NutriCology has 4 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 — read our methodology. 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.