Revolution Health Radio

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. The post RHR: The ADHD-Gut Connection Just Got Real appeared first on Chris Kresser.

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. The post RHR: A New Path to Parkinson’s Prevention and Treatment, with Dr. Ray Dorsey appeared first on Chris Kresser.

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. The post RHR: Do Vegetarian and Vegan Diets Get Riskier as You Age? What Two New Studies Reveal appeared first on Chris Kresser.

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. The post RHR: The Melatonin Problem appeared first on Chris Kresser.

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. The post RHR: The Hidden Harms of Ultra-Processed Foods appeared first on Chris Kresser.