Podcast 82 - What Jeff Browning Learned After 10 Years of OFM

After more than a decade of competing at the highest level of ultra-endurance racing, Jeff Browning continues to refine one of the most important aspects of performance—how he fuels. In this episode of the OFM Podcast, Peter Defty sits down with Jeff to discuss how his nutrition strategy has evolved over 10 years of using the OFM (Optimized Fat Metabolism) approach. Fresh off the Cocodona 250 and preparing for the Western States Endurance Run, Jeff shares the lessons he's learned from years of racing, testing, and adapting his fueling strategy. Together, they explore why endurance nutrition doesn't have to be a choice between high-carbohydrate fueling and strict ketogenic diets. Instead, they explain how strategic carbohydrate use, metabolic flexibility, and individualized nutrition can help athletes improve performance, reduce gastrointestinal distress, and support long-term metabolic health. The conversation also dives into emerging topics such as protein intake during ultra-distance events, hydration and electrolyte strategies, gut health, and why supporting recovery may be just as important as fueling the race itself. Whether you're training for your first marathon, preparing for a 100- or 200-mile ultramarathon, or simply looking to better understand endurance nutrition, this episode offers practical insights backed by more than a decade of real-world experience. In this episode you'll learn: Why OFM is not a ketogenic diet How strategic carbohydrates can support endurance performance What Jeff learned after racing the Cocodona 250 The role of protein during races lasting longer than 10 hours How gut health influences performance and recovery Practical hydration and electrolyte strategies Why metabolic flexibility may outperform nutrition extremes If you're looking for a smarter, more sustainable approach to endurance fueling, this conversation is packed with actionable insights you can apply to your own training and racing.   Show Notes and link to the video here: https://ofm.io/jeff-browning-on-10-years-of-ofm-what-every-endurance-athlete-should-know/