Meat vs. Plant Diets: What the Science Really Says

The Brain Docs November 7, 2025
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Brain health for you, your family, and your community with Drs. Dean and Ayesha Sherzai, a unique husband-and-wife team on the cutting edge of brain science. Drs. Sherzai are dedicated to educating people on the simple steps to long-term health and wellness through their work as neurologists, scientists and public health advocates through online writing, videos, and books. There is a tsunami of diseases of the brain such as Alzheimer’s, stroke and Parkinson’s disease permeating our culture. In our own communities and families, we all have known at least one person suffering from these illnesses and in many cases seen the fallout first-hand. There is no treatment for these diseases, and the emotional, financial and social burden is immense, and at this point, lifestyle interventions are the best solution for reducing dementia risk.

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Dr. Christopher Gardner, Dr. Matthew Nagra, and Dr. Adrian Chavez join us for ‘Your Brain On... Eating Meat’, a neuroscience podcast. Carnivorous diets have been woven into our history for millennia, but, with nutrition science advancing at an unprecedented pace over the past century... do we really still need to be eating meat? We live in a time of rising chronic disease, new longevity research, and a growing awareness of how our food choices shape our brain and our planet. We're also constantly exposed to 'nutrition tribalism': social media communicators and influencers building identities (and livelihoods) around polarizing dietary debates. It's a lot to navigate. So, we're cutting straight to the data in this episode. Plus: we're pulling on the work and research we've done in many different communities to explore how going plant-based can be as much a cultural or logistical hurdle as a health-driven or ethics-based choice. In this episode, we discuss: • Whether protein deficiency is a realistic concern • Protein myths: plant vs. animal • What the actual protein science says (and why most Americans already get more than enough) • The role of saturated fat, fiber, and the microbiome • Processed vs. unprocessed meat — what matters most • How identity, culture, and family can make going plant-based challenging • How cooking method changes risk (yes, barbecue lovers… we go there) • Meat alternatives: healthful option or "ultra-processed trap"? • Practical, non-judgmental guidance for plant-forward or omnivorous eaters To give this divisive matter the nuance it deserves, we welcome three of the most authoritative voices in this space: DR. CHRISTOPHER GARDNER: the Stanford nutrition scientist behind landmark diet trials (including DIETFITS). DR. ADRIAN CHAVEZ: a nutrition researcher, educator, and consultant, who previously joined us for 'Your Brain On... Supplements'. DR. MATTHEW NAGRA: a nutritionist and science communicator, who you might remember from 'Your Brain On... Protein'. This is... Your Brain On Eating Meat. SUPPORTED BY: the 2026 NEURO World Retreat. A 5-day journey through science, nature, and community, on the California coastline: https://www.neuroworldretreat.com/ 'Your Brain On' is hosted by neurologists, scientists, and public health advocates Ayesha and Dean Sherzai. 'Your Brain On... Eating Meat' • SEASON 6 • EPISODE 3

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