Metabolism Scientist: The Truth About Ketone Supplements for Runners

<p>Why Ketone Supplements Work Better for High-Carb Runners</p><p><br /></p><p>🫁 Save $100 on Tymewear Pro Training Membership</p><p>Code: E-LABTW26</p><p>👉 https://www.tymewear.com/E-LABTW26</p><p><br /></p><p>Most runners assume that if ketones are beneficial, the athletes already producing the most ketones naturally would benefit the most from ketone supplements. But the science suggests something more complicated.</p><p>In this episode of The Endurance Lab, I sit down with ketone researcher Dr. Jonathan Little to break down the surprising differences between nutritional ketosis and exogenous ketones — and why ketone supplements may actually make more sense for high-carb endurance athletes than runners following a ketogenic diet.</p><p><br /></p><p>We discuss:</p><p>- Why taking ketone supplements is NOT the same as being in ketosis</p><p>- The difference between endogenous ketosis and exogenous ketones</p><p>- Why ketone supplements raise insulin and suppress fat burning</p><p>- Why keto-adapted runners may get less benefit from ketone supplements</p><p>- Whether ketone esters can actually improve marathon performance</p><p>- The truth about ketones as the “fourth macronutrient”</p><p>- Ketone supplements vs carbohydrates for endurance performance</p><p>- Whether high-carb runners should consider ketone esters</p><p>- The potential role of ketones in recovery, glycogen replenishment, inflammation, sleep, and brain health </p><p><br /></p><p>Jonathan Little has spent over a decade researching ketones, ketogenic diets, metabolic health, insulin resistance, and exercise physiology. His work helps separate the hype around exogenous ketones from what the science actually shows.</p><p><br /></p><p>00:00 Ketone Research Background</p><p>01:48 Endogenous vs Exogenous Ketosis</p><p>07:02 Why Supplements Reduce Fat Burning</p><p>08:14 Metabolic Health Benefits Compared</p><p>10:48 Keto Weight Loss Explained</p><p>13:48 Keto vs High Carb For Runners</p><p>20:52 Sports Gels Metabolic Risk</p><p>27:10 Types of Ketone Supplements</p><p>33:18 D vs L BHB Differences</p><p>36:07 BHB Thresholds and Tradeoffs</p><p>38:51 Acute vs Sustained Ketone Dosing</p><p>40:21 Ketogenic Marathoner Scenario</p><p>46:11 High Carb Athlete Reality Check</p><p>48:43 Recovery and Adaptation Focus</p><p>50:53 Why Performance Can Drop</p><p>53:46 Practical Advice for Runners</p><p>54:52 Recovery Benefits Breakdown</p><p>01:00:02 Brain and Inflammation Potential</p><p>01:08:46 Metabolic Health Takeaways</p><p>01:09:56 Defining Endurance Closing</p><p><br /></p>