65Good

Walnut Oil Review, Is Walnut Oil Non-Toxic?

The verdict
Walnut Oil averages 65 out of 100 on PFAS Authority's PFAS and toxin screen across the 3 Walnut Oil products graded as of October 2026, and none of them reach its 70 point pass mark.
Free to quote with attribution to PFAS Authority and a link to pfasauthority.com/brands/walnut-oil.

Walnut Oil grades Good on our four-band scale. On disclosure, the brand says nothing publicly about PFAS. See what every brand has published about PFAS for how that compares.

PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.

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International Collection Walnut Oil Pack of 6

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65GoodPFAS grade
  • walnut oil, liquid
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  • Oxidative rancidity and free radical formation, Walnut oil's high linoleic acid content makes it prone to…

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LA TOURANGELLE Walnut Oil

Walnut Oil

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65GoodPFAS grade
  • Walnut oil, food product
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3 hazards checked on this product. See all of them.

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Spectrum Naturals Refined Walnut Oil

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65GoodPFAS grade
  • Refined walnut oil, liquid food product
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2 hazards checked on this product. See all of them.

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Walnut Oil and PFAS, common questions

Does Walnut Oil have PFAS?
Walnut Oil averages 65 out of 100 on PFAS Authority's PFAS and toxin screen across the 3 Walnut Oil products graded as of October 2026, and none of them reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
Is Walnut Oil non-toxic?
No Walnut Oil product we graded reaches Good. The best of them is International Collection Walnut Oil Pack of 6 at 65/100.
Which Walnut Oil products should I avoid?
The lowest-graded Walnut Oil products we have scored are Spectrum Naturals Refined Walnut Oil, LA TOURANGELLE Walnut Oil, International Collection Walnut Oil Pack of 6. Each one links to the evidence behind its grade.

Every grade uses the same public rubric. How grades work →