podcast

How Different Diets Impact Your Health | Dr. Christopher Gardner

12.05.2025
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My guest is Dr. Christopher Gardner, Ph.D., professor of medicine and director of nutrition studies at Stanford. He is known for his pioneering research on the impact of dietary interventions on weight loss and health.

We compare ketogenic, vegetarian, vegan and omnivorous diets—and why there is no one-size-fits-all approach. All agree, however, that eliminating or dramatically reducing processed foods is best for health.

We discuss the protein needs controversy; plant vs. animal proteins; the importance of fiber and low-sugar fermented foods for gut health and inflammation; and how diet affects gene expression. We also review food allergies—including gluten, wheat, dairy and soy—as well as raw dairy.

The episode offers data-supported advice for healthier eating.

Read the episode show notes at hubermanlab.com.

Thank you to our sponsors

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Timestamps

Christopher Gardner

Is there a Best Diet?, Individual Needs, Geography & Diet, Lactose

Sponsors: Eight Sleep & Mateina

Raw Milk, Lactose Intolerance

Wheat Allergies, Gluten Intolerance; Celiac Disease

Processed Foods, Food Dyes, Research Outcomes, NOVA Classification, GRAS

Processed Foods, Economic & Time Considerations, US vs European Products

Food Industry Funding, Investigator Influence, Equipoise, Transparency

Sponsors: AG1 & BetterHelp

Industry Funding, National Institute of Health (NIH)

Whole Food, Plant-Based Diet; Diet Comparison, DIETFITS, A TO Z Study

Nutrition Naming, Omnivore, Meat, Animal Feeding Operations (CAFO)

Transforming American Diet; Taste, Health & Environment

Sponsor: LMNT

Food Preparation, Chefs, Improve School Food

Scalability, Mega-Farms, Small Farm & Farmer Loss

Protein Requirements, Dietary Protein Recommendations, Standard Deviations

Protein & Storage

Plants & Complete Proteins?, Legumes, Bioavailability

Sponsor: Levels

Beyond Meat, Impossible Meat, Ingredients, Sourcing Meat, Salt

Vegan vs Omnivore Diet, Twin Study, Cardiometabolic Markers, Genes, Microbiome

Health Science Communication, DEXA; “Protein Flip” Diet; Food Patterns, Caloric Intake

Microbiome, Inflammation, Fiber, Tool: Low-Sugar, Fermented Food

Acknowledgements

Zero-Cost Support, YouTube, Spotify & Apple Follow & Reviews, Sponsors, YouTube Feedback, Protocols Book, Social Media, Neural Network Newsletter

Disclaimer & Disclosures

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