Dr. Staci Whitman, a leading expert in functional dentistry, aims to transform oral healthcare. She discusses the critical role of the oral microbiome and innovative testing methods for personalized care. Key topics include the benefits of nanohydroxyapatite as a fluoride alternative, holistic practices like oil pulling, and the impact of diet and stress on oral health. Dr. Whitman emphasizes eco-friendly dental products and the importance of maintaining beneficial bacteria for improved overall wellness.

Dr. Nina Teicholz, a science journalist with a PhD in nutrition and author of The Big Fat Surprise, dives into controversial nutrition topics. She critiques the flawed low-fat dietary guidelines and argues for re-evaluating saturated fat's role in heart health. The episode explores the rise of seed oils, their health risks, and the commercialization of dietary advice. Teicholz also discusses success stories from low-carb diets in reversing insulin resistance, emphasizing the importance of protein for gut health in dietary choices.

Dr. Stasha Gominak, a neurologist and sleep coach, delves into the surprising links between vitamin D, gut bacteria, and sleep quality. She discusses how low vitamin D levels can disrupt restorative sleep and the overlooked connections between sleep disorders and headaches. Gominak critiques outdated medical practices surrounding vitamin D and emphasizes the need for personalized supplementation. She also highlights the importance of outdoor living for health and recovery while advocating for the use of natural dietary sources over supplements.

Dr. Stephanie Venn-Watson, CEO of Seraphina Therapeutics and a leading researcher on pentadecanoic acid (C15:0), discusses its groundbreaking role in health and longevity. She reveals how C15 deficiency can lead to insulin resistance and liver issues. The conversation highlights its importance in dolphin health, suggesting profound implications for human nutrition. Additionally, Venn-Watson emphasizes the need for dietary sources rich in C15, alongside the potential of magnesium and dietary fiber like inulin in promoting overall metabolic wellness.

Louisa Nicola, a neurophysiologist and performance coach specializing in Alzheimer’s research, shares her insights on brain health. She emphasizes the significant connection between exercise and cognitive function, recommending structured aerobic workouts. The importance of nutrition, particularly omega-3 fatty acids, and lifestyle choices like sleep and hydration, is discussed for preventing cognitive decline. Nicola also explores innovative methods like cold water immersion and the benefits of creatine for brain energy, providing practical steps for all ages to boost brain health.

Dr. Elizabeth Bright, a respected American osteopath and naturopath living in Italy, shares her insights on iodine and the carnivore diet. She discusses the essential role of iodine in health and how common dietary mistakes can hinder absorption. Elizabeth emphasizes the importance of healthy fats in combating inflammation and nutrient absorption. She also debunks myths surrounding vitamin D, highlights the benefits of organ consumption, and addresses the unique challenges of managing thyroid health, especially for those with autoimmune conditions.

Mike Mutzel, author of 'Belly Fat Effect' and expert in human clinical nutrition, dives deep into metabolic health. He emphasizes traditional sourdough's gut benefits and advocates for seasonal eating to enhance well-being. Alongside discussing essential supplements like vitamin D3 K2 and magnesium, he highlights the importance of balancing fitness with dietary indulgence. The conversation also touches on combatting metabolic diseases through lifestyle changes and optimizing blood sugar with whole foods, positioning practical health strategies for everyone.

Dr. Bill Schindler, an internationally known archaeologist, primitive technologist, and chef, dives into the fascinating world of food in this engaging discussion. He highlights the importance of traditional food preparation methods and their role in enhancing nutrition. The conversation tackles the nutritional benefits of seasonal eating and critiques modern processing methods, urging a return to ancestral practices. Schindler also shares insights on plant toxins and the significance of safe preparation techniques for grains and legumes, making food not just safe but also nourishing.

Dr. Mindy Pelz, a fasting and hormone expert known for her work on metabolic health and women's hormones, shares insights on reversing insulin resistance and burning fat. She emphasizes the significance of natural carbohydrates and blood sugar management for weight loss. The conversation highlights the protective role of body fat, the benefits of fasting, and the impact of perimenopause on brain function. Additionally, Dr. Pelz discusses the role of oxytocin in hormonal balance and the importance of cultivating emotional well-being in achieving overall health.

Mark Sisson, a renowned health and fitness expert and the father of the ancestral health movement, discusses fascinating insights into nutrition and exercise. He challenges traditional views on dietary fiber and running, emphasizing the significance of healthy fats over carbs. Sisson also highlights the critical role of magnesium for overall health and suggests rethinking marathon training in favor of more balanced fitness approaches. Additionally, he advocates for minimalist footwear to promote natural movement and the benefits of 'nose to tail' eating for optimal nutrition.