Ask a Cycling Coach Podcast - Presented by TrainerRoad
THE TRUTH ABOUT CARBS FOR CYCLISTS | Dr. Kyle Pfaffenbach | Ask a Cycling Coach Podcast 528
Apr 24, 2025
Dr. Kyle Pfaffenbach, a nutrition expert and coach at Eastern Oregon University, joins the conversation to unravel the complexities of carbohydrates for cyclists. They tackle the controversial question of high carb intake and its link to diabetes, deep-diving into insulin's regulatory role. Insights on insulin resistance highlight the importance of exercise and diet. The discussion emphasizes the significance of A1C readings and the need for balanced carbohydrate consumption, while also shedding light on the impacts of processed sugar on health and performance.
51:14
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Quick takeaways
- High carbohydrate intake, especially simple sugars, can spike insulin levels and potentially lead to insulin resistance for cyclists over time.
- Balancing carbohydrate consumption with physical activity and making mindful dietary choices outside of training is crucial for maintaining athletes' metabolic health.
Deep dives
The Connection Between High Carbohydrate Intake and A1C Levels
High consumption of carbohydrates, particularly simple sugars, can lead to elevated A1C levels in athletes. This was exemplified by a male cyclist who, upon increasing his carbohydrate intake during training, noticed a rise in his A1C to 5.9. Studies show that with high carb intake, blood sugar levels can spike due to rapid carbohydrate absorption, prompting an increase in insulin production. If these spikes occur frequently throughout the day without corresponding physical activity, it may contribute to insulin resistance over time.
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