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Fish Oil / Omega-3 Analysis Spreadsheet

The spreadsheet below provides an analysis of Omega-3 supplements with low levels of total oxidation and heavy metals – based on the IFOS batch testing.

To view the spreadsheet full screen, use this link.

All products in this list have been tested by IFOS and have passed all of their tests for acceptable thresholds of oxidation and contaminants.

In terms of guidance on what are acceptable levels of oxidation and contaminants, lower is better for all these parameters, and IFOS suggest the following thresholds:

  • PCB’s (an industrial chemical called polychlorinated biphenyl) less than 45 ppb (parts per billion)
  • Total Oxidation less than 19.5 (personally I’d prefer ~10 or less, but <19.5 is their threshold)
  • Mercury less than 0.1 ppm (parts per million)

Those are the parameters I’ve included in this table, to avoid it becoming obtuse, but IFOS approval of products requires that they also test for:

  • Dioxins and Furans (more toxic chemicals) at less than 1 ppt (parts per thousand)
  • Dioxin-Like PCBS (more toxic chemicals) at less than 1.5 ppt (parts per thousand)
  • Lead at less than 0.1 ppm (parts per million)
  • Arsenic at less than 0.1 ppm (parts per million)
  • Cadmium at less than 0.1 ppm (parts per million)

Let me know if you’ve suggestions for improvements in the comments.

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