Your Brain On
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...
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Everyone eats. It’s the one thing we all have in common. And yet, nutrition has become one of the most confusing, divisive, and misunderstood sciences in modern life. Low-fat. High-fat. Keto. Vegan. Paleo. Superfoods. For every study, there’s a headline that seems to say the opposite. In this episode, we turn to one of the most trusted voices in nutrition research to cut through the noise: Dr. Walter Willett, MD, DrPH. Dr. Willett, Professor of Epidemiology and Nutrition at Harvard T.H. Chan School of Public Health, has spent more than four decades studying how what we eat affects our...
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Autism isn’t new, but our understanding of it has changed dramatically. It’s now recognized as a broad neurodevelopmental spectrum that shapes how millions of people perceive, process, and interact with the world. In this episode, we explore what autism is AND isn’t, from its earliest signs in infancy to its deep genetic roots, and why misinformation about it continues to spread. We speak with three remarkable experts leading the field in early detection, genetics, and public education: DR. AMI KLIN, PhD, Director of the Marcus Autism Center at Emory University and a pioneer in early...
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Behind the staggering statistics on global diabetes prevalence are millions of individuals with different stories, struggles, and solutions. In this episode, we explore how diabetes affects your brain, body, and cognition, and how it can be prevented, managed, and (in many cases) reversed. We share some powerful personal stories from the clinic, bust some persistent food myths, and learn why diabetes is as much a neurological emergency as a metabolic one. Plus, we speak to three leading experts who are changing the way we treat diabetes: BRENDA DAVIS, RD: renowned dietitian and global...
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Alzheimer’s disease is constantly surrounded by myths and misinformation. Let’s set the record straight. In this episode, we bust through the most persistent Alzheimer’s myths, with facts based on decades of clinical experience and cutting-edge research. Myths include: • “Alzheimer’s is inevitable in old age” • “It’s all genetic, and there’s nothing you can do” • “There’s no cure, so diagnosis is useless” • “Supplements and vitamins can prevent or cure Alzheimer’s” • “Statins and vaccines cause Alzheimer’s” Plus many others. We also share our...
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With big changes happening in the Sherzai family household, we sat down for a roundtable discussion about the concept that will shape what we’re all doing next: our purpose. In this ‘unplugged’ mid-season chat, we’re joined by our kids — Sophia and Alex! — for a wide-ranging conversation about our values and goals. How they form, how they falter, and how they evolve, in an increasingly noisy world. Together, we discuss: • The neurological and evolutionary importance of purpose • How a firm sense of purpose can help us develop better habits • The difference between...
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Creatine for Alzheimer’s — let’s separate the hype from the hope. A new study has caused a stir in June 2025, but lead researcher Matthew K. Taylor told us: “ I don’t think I can recommend it to a patient that this is going to ultimately have some sort of cognitive influence.” We speak to Dr. Taylor and Dr. Russell Swerdlow in this episode, discussing: • Role of creatine in your brain, and why it matters for energy metabolism • What the 2025 study found (and why it wasn’t designed to prove effectiveness) • How scientific nuance gets lost in supplement hype • Why even...
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Stress isn’t just a threat to your brain. It’s also one of its best tools for growth. We often hear that stress is bad for your brain. And it can be. Chronic, unpredictable, and uncontrollable stress can damage cognition, harm memory, and accelerate aging. But we don’t talk enough about how the right kind of stress can actually improve brain function, grow your hippocampus, and help you feel happier and more purposeful. In this episode of Your Brain On..., we explore the science of stress with two brilliant guests: Dr. Sharon Bergquist, Yale- and Harvard-trained internal medicine...
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Stroke is one of the biggest causes of death in the world — but also one of the most preventable. Up to 80–90% of strokes could be avoided with more awareness, resources, and a firmer focus on prevention over intervention. In this episode, we’re joined by renowned stroke neurologist and public health pioneer Dr. Olajide Williams, MD, MS, whose ‘Hip-Hop Stroke’ movement is a shining example of enacting culturally-sensitive community-wide healthcare change. In this episode, we discuss: • What actually causes a stroke (and how to spot one in seconds using the ‘act FAST’ acronym)...
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How can we eat better when we’re constantly marketed to in a way that hijacks our attention and habits? To complement the incredible discussions we regularly have about brain-healthy nutrition, in this episode, we’ve having a very important conversation about how the food industry works against our best intentions, and how we can break through the psychological barriers they use to hold us back. We’re joined by Marion Nestle, Professor of Nutrition, Food Studies, and Public Health, Emerita, at New York University, whose name is practically synonymous with food policy: a pioneering...
info_outlineCarnivorous 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:
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Whether protein deficiency is a realistic concern
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Protein myths: plant vs. animal
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What the actual protein science says (and why most Americans already get more than enough)
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The role of saturated fat, fiber, and the microbiome
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Processed vs. unprocessed meat — what matters most
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How identity, culture, and family can make going plant-based challenging
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How cooking method changes risk (yes, barbecue lovers… we go there)
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Meat alternatives: healthful option or “ultra-processed trap”?
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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
LINKS
Dr. Christopher Gardner
Dr. Christopher Gardner at Stanford: https://med.stanford.edu/profiles/christopher-gardner
Dr. Christopher Gardner on Instagram: https://www.instagram.com/cgardnerphd
Dr. Adrian Chavez
Dr. Adrian Chavez on Instagram: https://www.instagram.com/dr.adrian.chavez
Dr. Adrian Chavez's website: https://www.dradrianchavez.com/
Dr. Adrian Chavez's Podcast: https://www.thenutritionsciencepodcast.com/
Dr. Matt Nagra
Dr. Matt Nagra on Instagram: https://www.instagram.com/dr.matthewnagra
Dr. Matt Nagra’s website: https://drmatthewnagra.com/