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

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

Author: Andrew Coates April 30, 2026 Duration: 53:58

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 Pitfalls

23:10 Sponsor Break – Just Bite Me Meals

24:16 Counterfeit Supplements Overseas

26:33 Protein Margins And Economics

27:16 Omega-3 Oxidation Teaser

27:57 Omega-3 Essentials

29:14 Fish Oil Storage

31:02 Spotting Quality Brands

32:27 Rancidity Smell Test

33:22 Core Supplements List

36:24 Vitamin D Nuances

38:51 How Products Get Made

41:51 Collagen Misconceptions

46:15 Athlete Electrolytes

49:49 Caffeine Tolerance Reset


SUPPORT THE SHOW


If this episode helped you make smarter decisions about supplements, you can support the show by:


• Subscribing and checking out more episodes

• Sharing it on social media (tag me — I’ll respond)

• Sending it to someone who uses supplements regularly


FOLLOW ANDREW COATES


Instagram: @andrewcoatesfitness

https://www.andrewcoatesfitness.com


PARTNERS AND RESOURCES


RP Strength App (use code COATESRP)

https://www.rpstrength.com/coates


Just Bite Me Meals (use code ANDREWCOATESFITNESS for 10% off)

https://justbitememeals.com


MacrosFirst – FREE Premium Trial

Download MacrosFirst and during setup select: ANDREW


KNKG Bags (15% off)

https://www.knkg.com/Andrew59676


Versa Gripps

https://www.versagripps.com/andrewcoates


TRAINHEROIC – FREE 90-Day Trial

https://www.trainheroic.com/liftfree


Reply to the email you receive (or email trials@trainheroic.com

) and let them know Andrew sent you


Andrew Coates hosts Lift Free And Diet Hard, a conversation grounded in the belief that strength and wellness are built on more than just routines. This podcast moves beyond quick fixes to examine the principles and personal stories that shape a sustainable, intentional life. You’ll hear from a variety of inspiring guests who share not only their expertise but also the real-world challenges and triumphs they’ve faced. The discussions naturally weave together the science of fitness with the practicalities of daily choices, offering a nuanced look at what it means to truly care for your physical and mental health. Each episode is designed to provide actionable insights you can use to navigate your own path, fostering resilience and confidence whether you're in the gym or the kitchen. By focusing on informed decision-making over dogma, the Lift Free And Diet Hard podcast becomes a resource for anyone looking to cut through the noise of wellness culture. Andrew facilitates these explorations with a focus on empowerment, ensuring every conversation adds a layer of understanding to the complex journey of building a strong, healthy life.
Author: Language: English Episodes: 100

Lift Free And Diet Hard with Andrew Coates
Podcast Episodes
#474 Dr Mike Banna - Why Are Fitness Influencers Scared of GLP-1 Drugs [not-audio_url] [/not-audio_url]

Duration: 1:08:47
Dr Mike Banna is a physician in the UK health care system and passionate health educator.Mike guests to share his experience with:What’s going on with “pro” and “anti” GLP-1 medication people and tribesWhy fitness influe…
#473 Dr Dwayne Jackson - Reclassifying PCOS to PMOS, What This Means [not-audio_url] [/not-audio_url]

Duration: 48:52
Dr Dwayne Jackson returns to break down the implications of the reclassification of PCOS to PMOS (Polyendocrine Metabolic Ovarian Syndrome).Including:What the reclassification meansWhy it’s important and helpful for outc…
#468 Krista Scott-Dixon - Hunger, Behavior Change, and Identity [not-audio_url] [/not-audio_url]

Duration: 1:05:18
Krista Scott-Dixon returns to share details about her new book — Applied Nutrition Coaching and Counseling: Theory to Practice — and her expertise about:In our modern world, can we trust our hunger signalsWhy Krista beli…
#466 Erica Mulholland - Managing Injuries In Female Youth Sports [not-audio_url] [/not-audio_url]

Duration: 59:36
Erica Mulholland is a strength coach who specializes in young female athletes and the author of Female Athlete High Performance.Erica joins me to share her expertise on:Are injury rates higher in young female athletesWha…