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April 23, 2026

Continuous Glucose Monitoring and Its Role in Professional Sport

What CGM measures, what the evidence shows about glucose in athletes, and how to use the technology without misread...

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Table of Contents

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  • What CGM measures, what the evidence shows about glucose in athletes, and how to use the technology without misreading the data
      • Key Points
      • What CGM Actually Measures
        • How the technology works
        • Originally developed for diabetes
        • Use in athletes without diabetes is recent
      • What the Evidence Shows About Glucose in Athletes
        • Glucose during training
        • Blood sugar around meals
        • Blood sugar during long endurance events
        • Blood sugar problems in high training loads
      • Where CGM Has Legitimate Roles in Elite Sport
        • Diabetes management
        • Identifying genuine fueling problems
        • Informing fueling strategy in long endurance events
        • Detecting nighttime lows in heavy training periods
        • Increasing food awareness
        • Performance support and sports science work
      • The Limitations of CGM in Sport
        • Accuracy in high-intensity and dynamic conditions
        • No agreed targets in healthy athletes
        • Glucose is one variable among many
        • Risk of misinterpretation in healthy athletes
        • Risk of unnecessary food restriction
      • How Professional Athletes Should Approach CGM
        • Decide whether CGM answers a real question
        • Use it for focused, time-limited periods
        • Interpret data with professional support
        • Keep blood sugar in context
      • Conclusion
      • References
→ Index