Innersight Podcast

This week we're throwing it back to the 2025 Thrive360 Health Conference, where Rudy and Shaun presented one of our favourite talks: Know Your Numbers. In a world filled with endless health tests and conflicting advice, how do you know which numbers really matter? In this live presentation, we explore some of the most important biomarkers and health metrics that can help predict future disease...

In this episode of the InnerSight Podcast, Rudy and Shaun take a balanced, evidence-based look at one of the most talked-about topics in modern health and longevity: peptides. Some peptides are transforming medicine and changing the way we treat obesity, diabetes, and metabolic disease. Others have generated enormous excitement despite having very limited human data. So how do we separate genuine...

What does it actually take to fuel hard training without burning out your body for the long run? In this episode of InnerSight, we sit down with sports dietitian and endurance athlete Helanie van Rooyen to unpack the real science behind performance nutrition — and where so many athletes go wrong. We explore Relative Energy Deficiency in Sport (RED-S) and why under-fueling is more common (and more...

Muscle is one of the strongest predictors of how well — and how long — we live. But most people don’t know how to train it properly, especially as they get older. In this episode, we have Hannes Swanepoel as our guest and we take a practical, biokineticist-driven approach to muscle and longevity. We focus on how to assess where you are, what actually needs to improve, and how training should evolv...

In this episode of the InnerSight Podcast, Rudy and Shaun sit down with chiropractor and author Cuan Coetzee to explore the powerful idea that movement is medicine. Cuan shares the personal and professional journey that led him to write his book Movement Is Medicine, including the experiences in clinical practice that shaped his thinking about pain, posture, mobility, and modern sedentary lifestyl...

New year motivation is high—but most health resolutions fail because they’re vague, generic, and disconnected from meaningful data. In this episode, Rudy and Shaun unpack why goals like “lose weight” or “get fit” rarely work without a clear plan and measurable markers. They explain why knowing your key health numbers—from metabolic and cardiovascular markers to body composition and fitness metrics...

What fuels your body, restores your mind, and keeps your energy systems running at peak performance? In this 60‑minute InnerSight special, we’ve stitched together our most impactful shorts into one cohesive journey through the science of supplements, recovery, and energy metabolism. • ​Creatine Revolution: Discover why creatine is no longer just for athletes — from brain health to bone strength, a...

In this milestone 30th episode of InnerSight, we welcome dual-qualified physician & functional medicine expert Dr Roos. We explore why healthy bones are much more than structural support — they’re central to mobility, resilience, and longevity. We dig into the science of Osteoporosis: what happens when bone density and architecture deteriorate, how risk increases with age, hormonal changes and...

Ever wondered how to keep your skin healthy and youthful for the long haul? In this episode of the InnerSight Podcast, hosts Rudy and Shaun sit down with Dr Barbara van der Westhuizen, Cape Town dermatologist and founder of DrBarbaraDerm.co.za, to explore skin health through the lens of longevity. They start with the essentials—why regular skin-cancer screening matters more than any anti-aging rou...

In this episode, Rudy and Shaun sit down with a Somerset West–based periodontist to unpack how oral health extends far beyond your mouth. With media and research drawing stronger connections between gum disease and systemic conditions like heart disease and dementia, we explore what the science is really saying. You’ll learn: How periodontal disease develops and when to suspect it Who is most at r...

Colorectal cancer rates among people under 50 have skyrocketed in recent decades – and nobody saw it coming. Join Rudy and Shaun as they dive deep with Dr. Botes, a renowned colorectal surgeon, to unpack this medical mystery that's rewriting everything we thought we knew about cancer patterns. From lifestyle factors to environmental triggers, we explore why millennials and Gen X are facing a d...

Are you drowning in supplement advice but still unsure what actually works for healthy aging? In this evidence-packed episode, longevity doctors Rudy and Shaun cut through the marketing hype to reveal the supplements with real clinical backing for preserving the three pillars of vitality: muscle strength, bone density, and cognitive sharpness. Discover how a hip fracture can be more dangerous than...

Dr. Rudy and Dr. Shaun welcome iron specialist Dr. Claire Barrett to discuss the often-overlooked issue of iron deficiency in athletes. Learn how low iron levels can sabotage athletic performance, why athletes are at higher risk, and evidence-based strategies for maintaining optimal iron status. Essential listening for athletes, coaches, and healthcare providers working with active populations.

In this eye-opening episode of the InnerSight Podcast, Rudy and Shaun are joined in studio by ENT specialist Dr. Karjieker, founder of Breathe Right, to explore the silent epidemic that’s disrupting lives: poor sleep and sleep apnea. We kick off by unpacking why quality sleep is essential — not just for energy, but for heart health, metabolism, mental clarity, and emotional resilience. Then we div...

Are Ozempic, Wegovy, and Mounjaro modern miracles or medical mysteries? In this eye-opening episode of InnerSight, Rudy and Shaun cut through the hype to reveal what actually happens in your body on GLP-1 medications. Discover why targeting visceral fat—not just weight—could be the game-changer for your health, how these revolutionary compounds work beyond appetite suppression, and what science re...

Your favorite gym supplement has a secret life. Join Rudy and Shaun on InnerSight as they shatter creatine myths and reveal groundbreaking research that's turning heads in science—not just in gyms. From boosting brain power to potentially extending your lifespan, discover why doctors, neuroscientists, and longevity experts are all taking a second look at creatine. This isn't just another f...

In this episode of the InnerSight Podcast, Rudy and Shaun sit down with Reece McDonald, Senior Coach at Science to Sport, to explore the science behind cycling and endurance performance. They dive into the benefits of exercise, VO₂ max, and its impact on longevity before breaking down how to go from a complete beginner to completing your first Cape Town Cycle Tour. The discussion covers key aspect...

In episode 20 of the Innersight Podcast, Rudy and Shaun welcome back biokineticist Hannes Swannepoel from RunningSmart.co.za. This time, they dive into the fundamentals of running—how to start from scratch and build up to your first 5K. They explore injury prevention, how the body adapts to training, and the role of running shoes. Later, they discuss cutting-edge tech used to analyze and improve r...

In this must-listen episode of InnerSight, hosts Rudy and Shaun welcome haematologist and iron metabolism expert Prof Vernon Louw. They dive deep into iron metabolism, exploring its vital role in every cell and its impact on energy production, brain function, and emotional health. Prof Louw also sheds light on the increased need for iron during pregnancy and its importance for the baby's brain dev...

In Episode 18 of the InnerSight podcast, Rudy and Shaun are joined by Dr. Hennie Bosch, a renowned orthopedic surgeon from Cape Town, to explore the critical role hip health plays in longevity and maintaining an active lifestyle. The discussion kicks off with the importance of mobility for overall health and dives into the profound impact of hip fractures on quality of life. Dr. Bosch shares exper...

In this insightful episode of InnerSight, Rudy and Shaun welcome Graham Fehrsen, a transition specialist and founder of Novo, known for his expertise in guiding individuals, teams, and organizations through times of extreme change. With a background in psychology and over 20 years of experience coaching senior leaders across diverse sectors, Graham shares his unique perspective on what drives peop...

In "Boost Mode: Dr Rudy & Dr Shaun Talk Testosterone," join Dr Rudy and Dr Shaun as they dive deep into the science behind testosterone replacement therapy (TRT). From boosting energy and vitality to improving overall wellness, they explore how TRT helps men regain balance in their health. Together, they tackle myths, discuss the latest treatment options, and break down the essential knowledge...

In this episode of InnerSight, Rudy and Shaun engage in a candid discussion with gynecologist Marlena Du Toit about women's hormonal health. They delve into the controversies surrounding hormone replacement therapy, examining the fear sparked by the Women's Health Initiative study and the flaws that recent research has uncovered. Learn why personalized hormone therapy might be the key to b...

Welcome to today's episode of the InnerSight podcast. We're diving into the world of endurance sports with a special focus on transforming from zero to completing an Ironman. Joining us is David Sullivan, a seasoned endurance sport coach with a wealth of experience in guiding athletes from all walks of life to achieve their Ironman dreams. Whether you're a complete beginner or looking...

In this must-listen episode of InnerSight, hosts Rudy and Shaun welcome haematologist and iron metabolism expert Prof Vernon Louw. They dive deep into iron metabolism, exploring its vital role in every cell and its impact on energy production, brain function, and emotional health. Prof Louw also sheds light on the increased need for iron during pregnancy and its importance for the baby's brain...