Sigma Nutrition Radio #545: Carbohydrate Metabolism, Performance & Metabolic Health – Prof. Javier Gonzalez
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Dec 10, 2024 In this engaging discussion, Professor Javier Gonzalez, a Nutrition and Metabolism expert at the University of Bath, dives deep into carbohydrate metabolism and its significance for both athletic performance and metabolic health. He shares insights on how glucose dynamics affect exercise, explores the pros and cons of ketogenic diets, and explains the importance of personalized dietary approaches. Listeners will learn about reactive hypoglycemia, the effects of carbohydrate intake on sports performance, and recent research addressing long-term health outcomes.
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Fasted State Glucose Regulation
- Blood glucose remains stable in the fasted state due to a balance of glucose entering and exiting the bloodstream.
- The liver breaks down glycogen and produces glucose to maintain brain function during fasting.
Postprandial Glucose Control
- After a carbohydrate-containing meal, blood glucose rises, triggering insulin release.
- Insulin suppresses liver glucose output and increases muscle glucose uptake to stabilize blood sugar.
Exercise and Glucose
- High-intensity exercise can drastically increase blood glucose, even while fasting, by stimulating hepatic glucose output.
- Measuring blood glucose accurately matters, as methods like CGMs can be less reliable during rapid glucose changes.