
370. Blood Markers and Labs on a Carnivore Diet - Coach Stephen Thomas
About this episode
Support your health journey with our private practice! Explore comprehensive lab testing, functional assessments, and expert guidance for your wellness journey. Find exclusive offers for podcast listeners at nutritionwithjudy.com/podcast.
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Stephen and I examine why standard lab markers like A1C, thyroid hormones, glucose averages, and antibodies can misrepresent health in carnivore and low-carb contexts. We break down physiological shifts in red blood cell lifespan, glycation, thyroid signaling, hydration, and electrolytes, and why symptom-based assessment often matters more than reference ranges.
Stephen is a UK-based coach, specialist in obesity and diabetes, and former private lab director with an honors degree in physiology and health sciences. After worsening health under conventional nutrition advice, he transitioned to low-carb and carnivore and has spent over a decade translating blood markers through a physiology-first lens. He writes daily science explainers and authored The Guide to Blood Tests in the Context of Keto, Carnivore, and Low Carb.
We discuss the following:
- All about Stephen Thomas
- Why A1C can rise on carnivore
- Red blood cell lifespan and A1C
- Physiology over reference range focus
- Adaptation vs. under-eating and thyroid dysfunction
- Women’s early carnivore challenges
- Stephen’s role in lab interpretation
- Harm of fear-based healing messages
- Where to find Stephen Thomas
EPISODE RESOURCES
- Carnivore group
- Website
- Substack
- Guide To Blood Tests book
- EFH Complete Wellness Panel
- Nutritionist’s Guide to the Carnivore Diet
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*DISCLAIMER: This content is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. It should not replace professional medical advice.
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