Chris Kresser https://chriskresser.com/ Reinvent Healthcare with Functional Medicine Fri, 30 Oct 2026 18:33:31 +0000 en-US hourly 1 https://wordpress.org/?v=7.1.4 59253720 RHR: The ADHD-Gut Connection Just Got Real https://chriskresser.com/the-adhd-gut-connection-just-got-real/ Tue, 03 Nov 2026 08:02:08 +0000 https://chriskresser.com/?p=17185 In this episode of Revolution Health Radio, Chris examines emerging research on the connection between ADHD and gut health. Reviewing a meta-analysis involving 23 studies and nearly two million people, he explores why individuals with ADHD experience higher rates of gastrointestinal symptoms and what the findings may reveal about the gut-brain connection. Chris examines the science behind the gut-brain connection, including the role of gut microbes, the vagus nerve, immune signaling, intestinal barrier function, and neurotransmitter production. Drawing on clinical case examples, he discusses how addressing gut health may help some people manage their symptoms and improve daily functioning and outlines practical strategies involving whole foods, fiber-rich plants, fermented foods when tolerated, consistent sleep, stress management, and sustainable eating routines. The episode also considers the role of ADHD medication and why a broader approach to care should not mean abandoning treatments that are helping.

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]]> 17185 RHR: A New Path to Parkinson’s Prevention and Treatment, with Dr. Ray Dorsey https://chriskresser.com/a-new-path-to-parkinsons-prevention-and-treatment-with-dr-ray-dorsey/ Tue, 27 Oct 2026 07:02:15 +0000 https://chriskresser.com/?p=17179 In this episode of Revolution Health Radio, Chris Kresser sits down with neurologist Dr. Ray Dorsey, author of The Parkinson’s Plan, to challenge the conventional view of Parkinson’s disease as primarily a consequence of aging and genetics. Dr. Dorsey makes the case that environmental exposures—including pesticides, industrial solvents, air pollution, and heavy metals—play a major role in the development and progression of Parkinson’s disease. Their conversation explores the epidemiological and biological evidence connecting these exposures to Parkinson’s, including dose-response relationships, geographic patterns, and laboratory research. They also offer practical strategies for reducing exposure through cleaner food, filtered water, improved air quality, and avoiding unnecessary pesticide exposure. The discussion concludes with a broader vision of shifting medicine from treating disease after it appears to identifying and addressing environmental causes before disease develops.

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]]> 17179 RHR: Do Vegetarian and Vegan Diets Get Riskier as You Age? What Two New Studies Reveal https://chriskresser.com/do-vegetarian-and-vegan-diets-get-riskier-as-you-age-what-two-new-studies-reveal/ Tue, 06 Oct 2026 07:02:16 +0000 https://chriskresser.com/?p=17169 In this episode of Revolution Health Radio, Chris breaks down two new studies of older adults that examine protein and micronutrient intake on plant-based diets. The findings raise important questions about protein quality, B12, calcium, zinc, vitamin D, and other nutrients—especially as aging increases protein needs and can reduce nutrient absorption. He also explores whether plant-based diets actually offer a longevity advantage and what older adults can do to protect muscle, bone, and nutritional status regardless of their dietary choices.

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]]> 17169 RHR: The Melatonin Problem https://chriskresser.com/the-melatonin-problem/ Tue, 29 Sep 2026 07:02:22 +0000 https://chriskresser.com/?p=17162 In this episode of Revolution Health Radio, Chris takes a nuanced look at melatonin and challenges the idea that because it is a naturally occurring hormone, it is automatically safe for routine, long-term use. He explains melatonin’s primary role as a circadian signal rather than a conventional sedative, explores concerns surrounding prolonged use and supplement quality, and examines recent research linking long-term melatonin use with heart failure risk—while emphasizing that observational research cannot establish causation. The episode also focuses on children, who may be particularly vulnerable to inappropriate or excessive melatonin use, and offers a foundational approach to better sleep centered on light exposure, consistent sleep schedules, stress regulation, sleep environment, and addressing underlying issues.

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]]> 17162 RHR: The Hidden Harms of Ultra-Processed Foods https://chriskresser.com/the-hidden-harms-of-ultra-processed-foods/ Tue, 15 Sep 2026 07:02:46 +0000 https://chriskresser.com/?p=17151 In this episode of Revolution Health Radio, Chris takes a deep dive into the latest research on ultra-processed foods, their potential impact on health, what distinguishes ultra-processed foods from minimally-processed and traditionally-processed foods, and why a Nutrition Facts label may not capture everything that matters about a food. He examines research linking higher ultra-processed food consumption with overeating, weight gain, metabolic dysfunction, cardiovascular disease, and other adverse health outcomes, and also explores potential mechanisms, including disruption of the food matrix, changes to the gut microbiome, intestinal barrier dysfunction, inflammation, oxidative stress, food additives, and effects on the gut-brain axis.

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]]> 17151 RHR: Can You Reverse Your Biological Age? https://chriskresser.com/can-you-reverse-your-biological-age/ Thu, 10 Sep 2026 07:02:11 +0000 https://chriskresser.com/?p=17139 In this episode of Revolution Health Radio, Chris Kresser explores what biological age really means and examines the research behind today's most popular longevity claims. He explains how epigenetic clocks and DNA methylation are used to estimate biological aging, why these tests may be less precise for individuals than they appear, and what studies like the CALERIE trial tell us about slowing the aging process. You'll also learn why reversing a biological age number isn't the same as reversing aging, and how meaningful improvements in muscle strength, cognition, metabolic health, and physical function can be achieved at virtually any age. He also offers a practical framework to build a strong foundation of sleep, nutrition, movement, stress management, connection, and purpose before investing in advanced longevity technologies or supplements.

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]]> 17139 Joint Health 3.0: What to Take When Glucosamine Didn’t Work https://chriskresser.com/joint-health-3-0-what-to-take-when-glucosamine-didnt-work/ Thu, 20 Aug 2026 17:55:42 +0000 https://chriskresser.com/?p=17130 You know the twenty minutes. You get out of bed and your knees need most of a cup of coffee...

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]]> 17130 Native Type II Collagen: The Joint Ingredient That Works Through Your Immune System https://chriskresser.com/native-type-ii-collagen-the-joint-ingredient-that-works-through-your-immune-system/ Thu, 20 Aug 2026 17:51:21 +0000 https://chriskresser.com/?p=17127 You notice it going downstairs. That’s usually where it shows up first, in the specific moment a knee has to...

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]]> 17127 Eggshell Membrane: Fast-Acting Joint Support Hiding in Your Breakfast https://chriskresser.com/eggshell-membrane-fast-acting-joint-support-hiding-in-your-breakfast/ Thu, 20 Aug 2026 17:21:21 +0000 https://chriskresser.com/?p=17122 There’s a bottle in your cupboard you stopped taking. Possibly two. You bought it for your knees, took it faithfully...

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]]> 17122 Boswellia: The Inflammation Pathway Your Painkiller Doesn’t Touch https://chriskresser.com/boswellia-the-inflammation-pathway-your-painkiller-doesnt-touch/ Thu, 20 Aug 2026 17:11:11 +0000 https://chriskresser.com/?p=17117 You take more ibuprofen than you’d like to. Most people with aching knees do, and most of them carry the...

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]]> 17117 RHR: My Top 3 Ingredients for Joint Health, Mobility, and Cartilage Repair https://chriskresser.com/my-top-3-ingredients-for-joint-health-mobility-and-cartilage-repair/ Tue, 18 Aug 2026 07:02:16 +0000 https://chriskresser.com/?p=17099 In this episode of Revolution Health Radio, Chris breaks down the science behind joint pain, osteoarthritis, and cartilage degeneration while challenging one of the most common assumptions about joint health—that glucosamine and chondroitin are the gold standard for protecting cartilage and relieving pain. He explains why current clinical evidence no longer supports those supplements as the best option and instead reviews the clinical evidence supporting three promising ingredients—native type II collagen, natural eggshell membrane, and Boswellia serrata—and discusses how each works through a unique biological pathway to reduce inflammation, preserve cartilage, improve mobility, and support long-term joint function.

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]]> 17099 RHR: Why Microglia Are the Key to Brain Health, with Dr. David Perlmutter https://chriskresser.com/why-microglia-are-the-key-to-brain-health-with-dr-david-perlmutter/ Tue, 11 Aug 2026 07:02:10 +0000 https://chriskresser.com/?p=17096 In this episode of Revolution Health Radio, Chris Kresser sits down with renowned neurologist and bestselling author Dr. David Perlmutter to discuss the emerging science of microglia—the brain's immune cells—and why they may hold the key to preventing cognitive decline and Alzheimer's disease. Drawing from his new book, Brain Defenders, Dr. Perlmutter explains how lifestyle factors such as nutrition, exercise, sleep, metabolic health, and gut health influence whether microglia protect the brain or contribute to chronic inflammation and neurodegeneration. Together, they challenge the outdated notion that dementia is largely predetermined by genetics, highlighting growing evidence that proactive lifestyle interventions can preserve—and even improve—brain function throughout life.

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]]> 17096 RHR: Your Mouth is Talking To Your Brain—And You Should Be Listening https://chriskresser.com/your-mouth-is-talking-to-your-brain-and-you-should-be-listening/ Tue, 07 Jul 2026 07:03:46 +0000 https://chriskresser.com/?p=17089 What if one of the most overlooked risk factors for cognitive decline isn’t in the brain—but in the mouth? In this episode of Revolution Health Radio, Chris Kresser explores the emerging science linking oral health to brain health. He examines how chronic gum disease may contribute to cognitive decline, Alzheimer’s disease, and Parkinson’s disease through systemic inflammation, direct bacterial migration to the brain, and disruption of the oral-gut-brain axis. Drawing on recent research, Chris explains why periodontal disease should be considered a key factor in dementia prevention, why this conversation remains absent from mainstream care, and practical steps listeners can take to protect both oral and long-term cognitive health.

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]]> 17089 RHR: Fibermaxxing: Why the Internet’s Hottest Gut Health Trend Gets It Half Right https://chriskresser.com/fibermaxxing-why-the-internets-hottest-gut-health-trend-gets-it-half-right/ Tue, 26 May 2026 07:02:10 +0000 https://chriskresser.com/?p=17086 In this episode of Revolution Health Radio, Chris takes a deep dive into the science of dietary fiber, fiber supplements, and microbiome health. He explains why the benefits seen in high-fiber diets may come from whole foods rather than isolated fiber supplements, and why aggressively increasing fiber intake can worsen bloating, gas, and gut dysfunction for some people. He explores the latest research on fiber, short-chain fatty acids like butyrate, gut permeability, and microbiome balance while unpacking the limitations of observational nutrition studies. He also shares practical strategies for improving fiber tolerance, supporting digestive health naturally, and choosing safer approaches for sensitive guts.

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]]> 17086 RHR: Revisiting the Gut-Immune Axis https://chriskresser.com/revisiting-the-gut-immune-axis/ Tue, 12 May 2026 07:02:42 +0000 https://chriskresser.com/?p=17082 The gut-immune axis is one of the most important and most overlooked systems in human health. In this episode of Revolution Health Radio, Chris explains how the gut microbiome, intestinal barrier, and immune system work together to regulate inflammation and protect against disease. Learn how disruptions in gut health, driven by ultra-processed foods, environmental toxins, antibiotics, and chronic stress, can lead to intestinal permeability, chronic immune activation, and a wide range of conditions including autoimmune disease, skin disorders, respiratory illness, and metabolic dysfunction. Chris also breaks down the latest research on key compounds that support gut and immune health, including probiotics, prebiotics, butyrate, polyphenols, colostrum, lactoferrin, and beta glucan. Discover how targeted nutrition and lifestyle strategies can restore gut integrity, improve immune resilience, and address the root cause of chronic illness.

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