#465 Dr Trevor Kouritzin - Supplement Quality, Safety, and Counterfeiting

#465 Dr Trevor Kouritzin - Supplement Quality, Safety, and Counterfeiting

April 30, 2026 · 54 min

About this episode

Dr Trevor Kouritzin discusses supplement quality, safety, and counterfeiting in the industry.

Dr Trevor Kouritzin holds a doctorate in medicine and a master’s in human nutrition. Trevor works in supplement formulation and joins me to share his expertise in: Is there a problem with quality across the supplement industry How does third-party testing work How are American and Canadian regulations different What is “nitrogen spiking” in protein powder and is this still an issue The problem with “proprietary blends” in supplements Is counterfeiting supplements an issue and where does it occur most What happens when omega-3 supplements oxidize and why it’s a problem How you can choose better omega-3 sources and protect against oxidation What supplements have evidence-based value for an everyday enthusiast Why vitamin D and magnesium are important to pay attention to What the evidence really says about collagen The good and the bad about caffeine And much more Instagram: @trevorkouritzin CHAPTERS 01:09 Supplement Quality Basics 02:03 Canada vs US Rules 04:45 Sponsor Break – MacrosFirst 05:54 Third-Party Certifications 08:00 Banned Substances Reality 10:02 Banned Stimulants And Gray Areas 12:35 Proprietary Blends Explained 14:22 Protein Nitrogen Spiking 18:53 Amazon Supplement…

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