The Metabolic Link

Johnny Pujol, a water chemist and founder of Tap Score, helps people test and understand drinking water. The conversation tours contaminants like uranium, arsenic, PFAS, and how testing methods and sample types matter. It covers differences between tap, bottled, and well water, filtration trade-offs, and how labs and local data shape recommendations.

Dr. Tommy Wood, physician, neuroscientist, and author focused on brain health across the lifespan, outlines why cognitive demand matters for brain metabolism. He covers stimulus-driven plasticity, the 3S Model (Stimulus, Supply, Support), and how exercise, lactate, ketones, and creatine affect brain energy. Practical topics include dosing exercise, resistance training vs HIIT, early-life environment, and strategies to build cognitive reserve.

Cutting-edge studies linking ketosis to cancer immunotherapy, reduced alcohol-craving brain signatures, and psychiatric symptom improvements. Trials and preclinical work examine inflammation, visceral fat, and neuropathic pain outcomes with ketogenic approaches. Practical questions about feasibility, timing, and clinical implementation are also explored.

Dr. Mark Tarnopolsky, neurologist and former elite endurance athlete turned mitochondrial specialist. He talks about why resistance training after 50 is essential. He explains protein needs for athletes and aging, nutrient timing for performance, and when endurance becomes harmful. He outlines practical mitochondrial supplements and how exercise boosts medical therapies.

Caesar Hernandez, a behavioral and molecular neuroscientist studying trauma, inflammation, metabolism, and brain aging. He explores links between PTSD and higher Alzheimer risk. He highlights early amygdala inflammation, metabolic and gut connections in veteran comorbidities, and why ketogenic interventions might reduce neuroinflammation and enhance rewiring of traumatic memories.

Dr. Lily Johnston, a board-certified vascular surgeon turned obesity medicine physician who bridges surgery and metabolic care. She explores how impaired nitric oxide and arterial stiffness may precede plaque, argues many vascular operations could be prevented with upstream metabolic intervention, and uses a forest-fire analogy to frame LDL risk. She also highlights imaging, personalized statin use, and prevention-focused care.

Dr. David Ludwig, a Harvard endocrinologist and obesity researcher, dives into the issues surrounding ultra-processed foods and nutrition policy. He critiques the NOVA classification system, arguing it lumps together inappropriate food categories. Ludwig discusses why some beliefs about ultra-processed foods may be flawed, and he emphasizes the importance of distinguishing between nutrients. He also proposes targeted policies, such as excluding sugary drinks from assistance programs, and critiques the most overrated 'healthy' supermarket foods.

Dr. Tomás Duraj, a physician-scientist at Boston College, specializes in cancer metabolism, focusing on glioblastoma treatment. He challenges conventional mutation-focused therapies, arguing for the potential of ketogenic metabolic therapy to exploit cancer's metabolic vulnerabilities. Dr. Duraj introduces the Glucose-Ketone Index as a key biomarker and advocates for protecting healthy cells during treatment. He suggests small pilot studies for better insights, offering a promising view of the future of metabolic oncology.

Dr. Christy Kesslering, a former radiation oncologist turned metabolic health practitioner, explores the crucial link between metabolism and cancer. She discusses how mitochondrial dysfunction could be a common thread in cancer development, delves into the impacts of processed foods and lifestyle, and emphasizes the role of insulin in cancer growth. Dr. Kesslering advocates for individualized dietary approaches, including ketogenic therapy, to enhance treatment outcomes. Her insights offer a hopeful perspective on the evolving landscape of cancer care.

In this engaging discussion, Dr. Scott Sherr, a board-certified internal medicine physician and leader in Integrative Hyperbaric Medicine, delves into the transformative power of hyperbaric oxygen therapy (HBOT). He recounts a life-changing moment witnessing HBOT's dramatic impact on a trauma patient. Topics include the importance of pre-treatment optimization, the sympathetic spiral of doom, and innovative strategies to enhance mitochondrial health. Dr. Sherr envisions a future where HBOT integrates seamlessly with personalized metabolic support for improved healing and human performance.