CGM Series | The Glucose Never Lies® Podcast

Three of the UK's leading diabetes specialist nurses on why CE marking is not a quality standard for CGM accuracy, why data sufficiency must come before device comparison, and what ATTD 2025 revealed about where diabetes technology is heading. A frank, clinical conversation grounded in years of front-line practice — and the story of how the DSN Forum's five-point accuracy scoring system was built.

In this episode:

Why the DSN Forum created its CGM comparison chart and how it has evolved
Why CE marking is not a quality standard for CGM accuracy
How the five-point accuracy scoring system works and what it requires from a device
Why only four devices currently meet the data sufficiency standard
What 20/20 and 40/40 agreement rates mean in real clinical terms
Why everyone using CGM for insulin decisions still needs a working finger-prick meter
The calibration debate: does the option to calibrate add safety or risk?
What ATTD 2025 revealed about fully closed loop systems — and who may not benefit
The case for GLP-1 in type 1 diabetes and why priority access matters
Abbott's continuous ketone monitor: opportunity, unknowns, and risks
AID system optimisation, insulin on board, and the GNL AID System Explorer

Chapters:

00:00 — Introduction: meeting Amanda, Beth and Tamsin
02:14 — Why the DSN Forum CGM comparison chart was created
06:47 — Turning complex CGM evidence into a practical scoring system
16:23 — How CGM choice works in real clinical settings
20:36 — Why finger-prick testing still matters — and the calibration debate
29:26 — What stood out at ATTD 2025
44:03 — AID systems, insulin on board, and the GNL AID optimiser
49:49 — Where to find the DSN Forum, the chart, and closing thoughts

Guests: Amanda Williams (Lead Diabetes Nurse, East Kent), Beth Kelly (Clinical Lead DSN, Wiltshire), Tamsin Fletcher-Salt (Lead DSN, University Hospital North Midlands). All core members of the Diabetes Specialist Nurse Forum UK.

Links:

Full show notes: https://theglucoseneverlies.com/episode-36-cgm-accuracy-dsn-forum/
DSN Forum CGM Comparison Chart: https://www.diabetesspecialistn

Disclaimer

This podcast is for education and informational purposes only. It does not constitute medical advice and is not a substitute for individualised care.

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Enquiries

Collaboration: John Pemberton — john@theglucoseneverlies.com

Creatives: Anjanee Kohli — anj@theglucoseneverlies.com

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Disclaimer
This content is for informational purposes only and does not constitute medical advice.