Nutrition — Episodes

13 curated episodes

92 min · May 2026 · #299

Do Athletes Really Need More Carbs? | Dr. Andrew Koutnik & Mike Haney

Dr. Andrew Koutnik, PhD — Visiting Research Scientist, Florida Institute for Human and Machine Cognition; studies nutrition, metabolism, Type 1 diabetes, and performance

Why muscle glycogen—your store of carbs—may not explain “the wall”—and how blood glucose, insulin, and metabolic flexibility can reshape how you fuel training.

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71 min · Apr 2026 · #296

The Truth About Protein: Why Exercise is Key to Muscle & Longevity

Dr. Stuart Phillips — McMaster University; Professor of Kinesiology & Director, Physical Activity Centre of Excellence

Protein alone doesn't build muscle — exercise does. Why the RDA is too low, how anabolic resistance accelerates with age, and what optimal intake actually looks like.

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84 min · Jan 2026 · #291

Why no diet wins (what 40 years of nutrition research shows)

Christopher Gardner, PhD — Stanford University; Professor of Medicine & nutrition researcher

After 40 years of diet RCTs, one thing is clear: no macro pattern wins. What the evidence actually supports, why industry funding distorts findings, and where consensus does exist.

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94 min · Jan 2026 · #289

Why nutrition science got it wrong

Gary Taubes — Investigative science journalist; author of Good Calories, Bad Calories and Why We Get Fat

Nutrition science built its guidelines on epidemiology, not trials. The case for the carbohydrate–insulin model, why low-fat dogma persisted, and what RCTs actually show.

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67 min · Oct 2025 · #283

Brain health: insulin resistance, biomarkers, and Alzheimer's risk

Dr. David Perlmutter — Perlmutter Health Center; Board-certified neurologist & New York Times bestselling author

Insulin resistance in the brain precedes Alzheimer's symptoms by decades. The biomarkers that reveal risk early — fasting insulin, homocysteine, ApoE — and what interventions work.

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94 min · Jul 2025 · #278

How your gut microbiome affects your health

Dr. Will Bulsiewicz, MD MSCI — ZOE; US Medical Director & board-certified gastroenterologist; author of Fiber Fueled

Gut bacteria produce postbiotics that regulate immunity, metabolism, and mood. Why diversity is the goal, how emulsifiers disrupt the gut barrier, and what to eat to rebuild it.

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70 min · Jun 2025 · #275

Micronutrient blood test results explained

Dr. Joel Fuhrman, MD — Longevity Rx / Nutritional Research Foundation; Physician & nutrition researcher; author of Eat to Live

Micronutrient deficiencies drive disease long before symptoms appear. Which deficiencies are most common, why supplements often fail, and what testing actually reveals.

64 min · Jan 2024 · #243

Fructose, sucralose, allulose, and avoiding insulin resistance from sweeteners

Dr. Richard Johnson, MD; Dr. Dominic D'Agostino, PhD — University of Colorado School of Medicine (Johnson); University of South Florida (D'Agostino)

Fructose suppresses satiety, sucralose disrupts the microbiome, and allulose does neither. A breakdown of every major sweetener and which ones drive insulin resistance.

80 min · Aug 2023 · #228

Role of nutrition for brain health

Dr. Georgia Ede; Dr. Dominic D'Agostino, PhD — Harvard-trained psychiatrist & nutrition specialist (Ede); University of South Florida (D'Agostino)

Psychiatric symptoms are often metabolic symptoms. How a ketogenic diet lowers insulin and CRP in ways that affect mood, which conditions respond best, and how to tailor it safely.

61 min · Jun 2023 · #218

Ultra-processed foods and the factors affecting food and nutrition

Dr. Robert Lustig, MD; Dr. Tim Harlan, MD — UCSF (Lustig); Tulane University; Executive Director, Tulane Goldring Center for Culinary Medicine (Harlan)

The food industry can make ultra-processed foods less harmful — and hasn't. The specific ingredients (DATEM, sucralose, omega-6 oils) that damage liver, gut, and metabolism.

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64 min · Mar 2023 · #208

How a low-carb diet can boost exercise performance and health

Professor Tim Noakes — The Noakes Foundation; Professor Emeritus, University of Cape Town; exercise physiologist

Fat-adapted athletes burn fat where carb-dependent athletes can't. The case for low-carb endurance training, and why glucose spikes during exercise signal pre-diabetes.

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103 min · Nov 2022 · #221

Can food and the keto diet affect your mental health?

Dr. Chris Palmer, MD — Harvard Medical School / McLean Hospital; Psychiatrist & researcher; author of Brain Energy

Mental disorders are metabolic disorders of the brain. How a ketogenic diet shifts neurotransmitters, and why schizophrenia, bipolar, and depression have mitochondrial signatures.

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53 min · Feb 2022 · #69

Insulin resistance and the hidden effects of sugar on kids

Dr. Robert Lustig, MD — UCSF; Professor Emeritus of Pediatrics & endocrinologist; author of Metabolical

Sugar gives children fatty liver disease and type 2 diabetes by damaging their mitochondria. Why fructose is the main driver, and what dietary changes reverse the damage.