EPISODE · Nov 18, 2025 · 32 MIN
The Devil in the Dairy - and Downstream Disease | E27
from Functional Medicine for Real-World Impact: The School of Applied Functional Medicine (SAFM) · host Tracy Harrison
Dairy’s trusted role in patient diets shifts as Tracy Harrison breaks down how it can drive inflammation, immune reactivity, and persistent symptoms that rarely get linked to food in clinical practice. She explains why lactose intolerance is far more common than most patients realize, how whey and casein can contribute to skin issues, congestion, joint pain, fatigue, and histamine overload, and why some patients tolerate goat or sheep dairy better than cow dairy. Tracy also highlights the problem of hidden dairy in packaged foods and how it can undermine a structured elimination. This episode gives practitioners a sharper lens for assessing symptoms that look unrelated at first glance and a clearer path for deciding when dairy deserves closer investigation in a patient’s case. Episode Breakdown: 00:00 The Devil in Dairy: An Introduction 02:58 Lactose Intolerance: A Common Misunderstanding 06:12 Immune Hypersensitivity to Dairy 09:00 Cow vs. Goat vs. Sheep Dairy: Understanding Differences 12:07 A1 vs. A2 Casein: The Protein Debate 14:53 Cross-Reactivity: Dairy and Gluten Connection 18:09 Symptoms of Dairy Sensitivity 20:57 The Myth of Dairy and Bone Health 24:11 Hidden Dairy: The Importance of Label Reading 26:59 Conclusion: Bio-Individuality in Dairy Consumption Links Take SAFM’s 10 CME course - The Essential Gut Deep Dive Get weekly Clinical Tips in your inbox Learn more about SAFM’s practitioner training Subscribe to our YouTube channel Access daily quick tips on Facebook Podcast production and show notes provided by HiveCast.fm
What this episode covers
Dairy’s trusted role in patient diets shifts as Tracy Harrison breaks down how it can drive inflammation, immune reactivity, and persistent symptoms that rarely get linked to food in clinical practice. She explains why lactose intolerance is far more common than most patients realize, how whey and casein can contribute to skin issues, congestion, joint pain, fatigue, and histamine overload, and why some patients tolerate goat or sheep dairy better than cow dairy. Tracy also highlights the problem of hidden dairy in packaged foods and how it can undermine a structured elimination. This episode gives practitioners a sharper lens for assessing symptoms that look unrelated at first glance and a clearer path for deciding when dairy deserves closer investigation in a patient’s case. Episode Breakdown: 00:00 The Devil in Dairy: An Introduction 02:58 Lactose Intolerance: A Common Misunderstanding 06:12 Immune Hypersensitivity to Dairy 09:00 Cow vs. Goat vs. Sheep Dairy: Understanding Differences 12:07 A1 vs. A2 Casein: The Protein Debate 14:53 Cross-Reactivity: Dairy and Gluten Connection 18:09 Symptoms of Dairy Sensitivity 20:57 The Myth of Dairy and Bone Health 24:11 Hidden Dairy: The Importance of Label Reading 26:59 Conclusion: Bio-Individuality in Dairy Consumption Links Take SAFM’s 10 CME course - The Essential Gut Deep Dive Get weekly Clinical Tips in your inbox Learn more about SAFM’s practitioner training Subscribe to our YouTube channel Access daily quick tips on Facebook Podcast production and show notes provided by HiveCast.fm
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The Devil in the Dairy - and Downstream Disease | E27
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