Ironman Nutrition Q&A: How to Carry Fluids, Manage Carbs & Hydration, and Build Your Race Day Fuel Plan | Ep 588

In this episode of the Oxygen Addict Triathlon Podcast, host Coach Rob Wilby answers key nutrition and hydration questions from athletes preparing for their first Ironman or 70.3. Drawing from insights gained during the team's recent training camp in Mallorca, Rob emphasizes the critical importance of personalized hydration and fueling strategies, especially in hot conditions. He explains how athletes can simplify their fluid carry on the bike by using aid stations every 25–30 kilometers to swap out empty bottles for fresh, pre-filled ones—eliminating the need to carry six hours of fluid. He recommends carrying two bottles: one with electrolyte-rich hydration and another with concentrated carbs, ideally using products like Precision Hydration’s Flow Gel for easy consumption. Rob also stresses the need to build a consistent training fueling plan, gradually increasing carb intake from 40–50g/hour to 60–90g/hour while monitoring gut tolerance. He shares practical alternatives to processed gels, including bananas, dates, flapjacks, Sturka bars, and even savory options like pre-made sandwiches—though he cautions against leaving perishable foods in hot conditions. The episode closes with a heartfelt thank-you to the Mallorca team and a reminder to use the code OXYGEN26 for 15% off Precision Fuel and Hydration products. Key takeaways include: 1) Use aid stations to refresh bottles every 30K—no need to carry all fluid; 2) Carry two bottles: one for hydration/electrolytes, one for carbs; 3) Gradually increase carb intake in training to find your gut’s limit; 4) Test fueling in training using real-world conditions; 5) Consider natural, whole-food alternatives like bananas and Sturka bars; 6) Avoid leaving perishable or savory foods in your bag in the heat; 7) Use Precision Hydration’s online sweat test to personalize your plan; 8) Prioritize hydration and fueling as much as training for race success.