The Glucose Never Lies® Podcast

By John Pemberton

Host John Pemberton — diabetes educator, researcher, and dad living with type 1 since 2008 — explores how to think clearly about type 1 diabetes in the real world.

Each episode tra

... more

3.7

33 ratings

Download on the App Store

Download on the App Store

Get it on Google Play

FAQs about The Glucose Never Lies® Podcast:

How many episodes does The Glucose Never Lies® Podcast have?

The podcast currently has 44 episodes available.

The Glucose Never Lies® Podcast episodes:

July 23, 2026 Episode 43: Tandem Control-IQ+ and Mobi, with Laurel Messer
Suggest guests or get in contact
A pump can be technically excellent and still deliver mediocre results, because the two settings that decide the outcome are the ones most clinicians tune last.
Laurel Messer, VP of Global Medical Affairs at Tandem Diabetes Care, returns to open the GNL AID series. She and John go through the real-world data behind Control-IQ's most powerful lever, what Control-IQ+ changes for the very young and the very high dose, the new sick day and extended bolus tools, the fresh FDA clearance for pregnancy, and the Tandem Mobi.
IN THIS EPISODE
- Why correction factor, not basal rate or target, is the setting with the biggest real-world effect on time in range (Messer 2023, n equals 20,764)
- Control-IQ+, the total daily dose range extended to 5 to 200 units, opening the system to very young children and very high insulin users
- Control-IQ+, the correction factor ceiling raised from 11 to 33 mmol/L (200 to 600 mg/dL)
- The new sick day hack, a temp basal that runs without leaving automation
- The extended bolus, up to eight hours, for high fat meals and delayed gastric emptying
- Fresh FDA clearance for Control-IQ in pregnancy, and what the CIRCUIT trial found for time in pregnancy range
- The Tandem Mobi, a matchbox sized on-body pump running the same Control-IQ algorithm
CHAPTERS
00:00 Introduction, launching the AID series
01:43 Welcome back, Laurel Messer
03:55 The 2023 registry paper, correction factor as the secret sauce
10:40 A basal and correction factor formula in practice
12:39 Time blocks across the day, the dusk phenomenon
15:37 Control-IQ+, wider total daily dose range
17:27 Control-IQ+, correction factor ceiling raised
20:50 Recap, basal at 50 percent, correction factor as the dial
22:36 Temp basal with automation on, the sick day hack
26:32 Extended bolus, up to eight hours
28:17 The pizza test
30:23 The science, why fat blocks insulin
32:21 FDA clearance for pregnancy
36:06 CIRCUIT trial results
44:22 Sleep Activity in pregnancy
49:14 Introducing the Tandem Mobi
53:41 Mobi minimum fill and early feedback
57:16 Takeaways, the two levers to know
GUEST
Laurel Messer, VP of Global Medical Affairs, Tandem Diabetes Care.
Host: John Pemberton, founder of The Glucose Never Lies and a paediatric diabetes dietitian, and a person living with type 1 diabetes.
LINKS (all full absolute URLs)
Show notes: https://www.theglucoseneverlies.com/episode-43-tandem-control-iq-plus-mobi/
Watch on YouTube: https://youtu.be/2Zq2XALSnYA
Apple Podcasts: https://podcasts.apple.com/gb/podcast/the-glucose-never-lies/id1795741144
Spotify: https://open.spotify.com/show/2MlGlz2G8LsbDnuGtAh77W
AID Algorithm Optimiser: https://www.theglucoseneverlies.com/aid-system-explorer/
Previous episode: https://www.theglucoseneverlies.com/episode-42-dice-2026-highlights/
ASK GRACE
Have more questions? Ask GNL Grace, a diabetes educational adviser built by a team with skin in the game. Grace gets you 80 per cent of the way there with 20 per cent of the effort; the final 20 per cent takes self-discovery, guided by human expertise and trial-and-error learning. Check out Grace at https://www.theglucoseneverlies.com/gnl-grace/
SUPPORT THIS PODCAST
The Glucose Never Lies is independent by design. We take no sponsorship and no advertising, so the podcast stays answerable only to the people who listen to it. If it has been useful, you can help keep it that way: drop a one-off tip, or set up a small monthly amount to keep the show ad-free. Either way, every penny goes back into making episodes.
Buy us a coffee (one-off or keep-it-ad-free): https://www.buymeacoffee.com/gnlfree
FOLLOW
Website: https://www.theglucoseneverlies.com/
Instagram: https://www.instagram.com/theglucoseneverlies
LinkedIn: https://www.linkedin.com/company/theglucoseneverlies
X: https://twitter.com/GlucoseNLies
DISCLAIMER
This podcast is for education only. It is not medical advice and is not a substitute for individualised care from your diabetes team. This episode reflects the independent clinical perspective of John Pemberton; Laurel Messer speaks in her role at Tandem Diabetes Care. It is not an endorsement by GNL of any product.
The Glucose Never Lies is a registered trademark of The GNL Ltd. Company No. 16733595. UK VAT No. GB 516 3272 08.
Disclaimer
This podcast is for education and informational purposes only. It does not constitute medical advice and is not a substitute for individualised care.
The Glucose Never Lies® is independent by design
We do not accept sponsorships and advertising. We operate via education grants and donations from listeners who value independence. So, consider:
Buying the GNL a Coffee:
https://buymeacoffee.com/gnlfree
Enquiries
Collaboration: John Pemberton — [email protected]
Creatives: Anjanee Kohli — [email protected]
Follow The Glucose Never Lies®
Website: https://theglucoseneverlies.com/
Instagram: https://www.instagram.com/theglucoseneverlies
LinkedIn: https://www.linkedin.com/company/theglucoseneverlies
LinkedIn: John Pemberton: https://www.linkedin.com/in/john-pemberton-587104361/
X: https://twitter.com/GlucoseNLies
Disclaimer
This content is for informational purposes only and does not constitute medical advice.
© The Glucose Never Lies Ltd. All rights reserved.
...more
1h 4min
June 01, 2026Episode 42: DICE 2026 - The Highlights
Suggest guests or get in contact
Suggest guests or get in contact
John Pemberton was at Croke Park on 21 May for DICE — Diabetes Ireland Conference and Exhibition — Ireland's premier annual event for healthcare professionals working in diabetes. The day also saw the launch of the landmark National Policy and Services Review for diabetes in Ireland. John grabbed a microphone and seven conversations. This episode is all of them.
Anjanee Kohli is Co-Director and Creative Director of The Glucose Never Lies® and the host for this episode. John Pemberton is founder of The Glucose Never Lies® and a paediatric diabetes dietitian at Birmingham Women's and Children's NHS Foundation Trust; he is also a person living with T1D. This episode reflects the independent views of both.
This episode covers:
Sinead Powell (Education and Support Coordinator, Diabetes Ireland): the COPE programme, emotional wellbeing in type 2 diabetes, language, stigma, and why information alone is never enough
Kathy Breen (Clinical Specialist Dietitian and Dietetic Lead, National Diabetes Programme): what Language Matters looks like in practice, person-first language, and its inclusion in the new national strategy
Kate Gaievska (Clinical Manager for Advocacy and Research, Diabetes Ireland): why adult diabetes psychology services in Ireland are effectively non-existent, what the strategy commits to, and the long road of implementation
Professor Fidelma Dunne (University of Galway / National Clinical Trials Network in Diabetes): how clinical trials get funded, why real-world data matters, and why research is not the icing on the cake
Christine Newman (Diabetes Consultant, Galway): hybrid closed-loop in pregnancy, CGM for type 2, and the case for free glucose strips for gestational diabetes
Professor Derek O'Keefe (Consultant Physician and Professor of Medical Device Technology, UHG): Mochara, a bounded AI education tool that matched nurse and doctor performance in trials, ambient clinical documentation, intelligent dynamic triage, and what multimodal AI means for diabetes care
Dr Tomas Griffin (Consultant Diabetologist, Galway / DTN Ireland): what the strategy means for pump access, the DTN Ireland roadshow, and why every tier of hospital in Ireland is now starting pump therapy
Show notes: https://theglucoseneverlies.com/
Have more questions? Ask GNL Grace, a diabetes educational adviser built by a team with skin in the game. Grace gets you 80% of the way there with 20% of the effort; the final 20% takes self-discovery, guided by human expertise and trial-and-error learning. https://theglucoseneverlies.com/gnl-grace/
Disclaimer
This podcast is for education and informational purposes only. It does not constitute medical advice and is not a substitute for individualised care.
The Glucose Never Lies® is independent by design
We do not accept sponsorships and advertising. We operate via education grants and donations from listeners who value independence. So, consider:
Buying the GNL a Coffee:
https://buymeacoffee.com/gnlfree
Enquiries
Collaboration: John Pemberton — [email protected]
Creatives: Anjanee Kohli — [email protected]
Follow The Glucose Never Lies®
Website: https://theglucoseneverlies.com/
Instagram: https://www.instagram.com/theglucoseneverlies
LinkedIn: https://www.linkedin.com/company/theglucoseneverlies
LinkedIn: John Pemberton: https://www.linkedin.com/in/john-pemberton-587104361/
X: https://twitter.com/GlucoseNLies
Disclaimer
This content is for informational purposes only and does not constitute medical advice.
© The Glucose Never Lies Ltd. All rights reserved.
...more
1h 10min
May 18, 2026 Ep 41: CGM Series Round-Up, Grace Update and John on Diabetech
Suggest guests or get in contact
Every few months, The Glucose Never Lies stops and takes stock. No single guest, no single topic: three CGM Series episodes have landed since the last round-up, Grace has a new model, and John has appeared on two podcasts that are not his own. This episode covers all of it.
Anjanee Kohli is Co-Director and Creative Director of The Glucose Never Lies® and the host for this episode. John Pemberton is founder of The Glucose Never Lies® and a paediatric diabetes dietitian at Birmingham Women's and Children's NHS Foundation Trust; he is also a person living with T1D. This episode reflects the independent views of both.
This episode covers:
- CGM Series catch-up: episodes 38, 39, and 40 in one conversation
- The IFCC glucose stress test: what it measures, the CE-versus-FDA accuracy gap, and the car crash analogy for insulin-dosing sensors
- The MDI generation gap: why people on injections have had one generation of CGM while pump users have had five
- What 17 early adopters actually reported about Night Low Predict and Glucose Predict on the Accu-Chek SmartGuide
- Grace's new model: a 30-day free trial for everyone, then Personal at £5 a month (£50 a year) and HCP at £20 a month (£200 a year); a £5 Buy Me a Coffee sponsorship opens a free account for someone on the waiting list
- The near-bankruptcy moment: flat architecture to wiki retrieval layer, cost reduced to roughly five per cent
- Why Grace has no memory by design: the deliberate reasoning behind a deliberate constraint
- John on Diabetech (Gary Shiner's show, hosted by Justin): CGM international testing standards
- John on Tomorrow's Medicine with Arseniy Arsentyev: how Grace was built, the antibody result that started it, and what nearly ended it
- AI and healthcare work: the people who adapt, the people who hide behind procedure, and what cannot be automated
Show notes: https://theglucoseneverlies.com/episode-41-cgm-series-grace-diabetech/
Before this episode, John appeared on:
Diabetech (Gary Shiner's show, hosted by Justin): https://youtu.be/6sxM1HOxcP4?si=2B3lHzyjSBgPKYfb
Tomorrow's Medicine with Arseniy Arsentyev: https://youtu.be/60MZGAk86NY?si=l3oF1J37EiI7fcCE
Have more questions? Ask GNL Grace, a diabetes educational advisor built by a team with skin in the game. Grace gets you 80% of the way there with 20% of the effort; the final 20% takes self-discovery, guided by human expertise and trial-and-error learning. https://theglucoseneverlies.com/gnl-grace/
---
Disclaimer
This podcast is for education and informational purposes only. It does not constitute medical advice and is not a substitute for individualised care.
The Glucose Never Lies® is independent by design
We do not accept sponsorships and advertising. We operate via education grants and donations from listeners who value independence. So, consider:
Buying the GNL a Coffee: https://www.buymeacoffee.com/gnlfree
Enquiries
Collaboration: John Pemberton, [email protected]
Creatives: Anjanee Kohli, [email protected]
Follow The Glucose Never Lies®
Website: https://theglucoseneverlies.com/
Instagram: https://www.instagram.com/theglucoseneverlies
LinkedIn: https://www.linkedin.com/company/theglucoseneverlies
LinkedIn John Pemberton: https://www.linkedin.com/in/john-pemberton-587104361/
LinkedIn Anjanee Kohli: https://www.linkedin.com/in/anjanee-kohli-chohan-1b22a217b/
Instagram Anjanee Kohli: https://www.instagram.com/anjanee.dietitian
X: https://twitter.com/GlucoseNLies
Disclaimer
This podcast is for education and informational purposes only. It does not constitute medical advice and is not a substitute for individualised care.
The Glucose Never Lies® is independent by design
We do not accept sponsorships and advertising. We operate via education grants and donations from listeners who value independence. So, consider:
Buying the GNL a Coffee:
https://buymeacoffee.com/gnlfree
Enquiries
Collaboration: John Pemberton — [email protected]
Creatives: Anjanee Kohli — [email protected]
Follow The Glucose Never Lies®
Website: https://theglucoseneverlies.com/
Instagram: https://www.instagram.com/theglucoseneverlies
LinkedIn: https://www.linkedin.com/company/theglucoseneverlies
LinkedIn: John Pemberton: https://www.linkedin.com/in/john-pemberton-587104361/
X: https://twitter.com/GlucoseNLies
Disclaimer
This content is for informational purposes only and does not constitute medical advice.
© The Glucose Never Lies Ltd. All rights reserved.
...more
41min
May 11, 2026 Episode 40 - Accu-Chek SmartGuide: CGM Generation 2.0 for MDI | Amy Jolley | GNL Podcast
Suggest guests or get in contact
People on MDI have had one generation of CGM technology: a sensor that tells you what your glucose is doing now, with a 15-minute trend arrow. While pump users have moved through five iterations, injection users have been waiting. The Accu-Chek SmartGuide is the first attempt at a second generation - and this episode asks whether it delivers.
Amy Jolley is a Highly Specialised Dietitian, Lead Educator at the Diabetes Technology Network UK, and Lead for the Young Adult and Transition Service at Salford NHS Foundation Trust. This episode is not endorsed by Roche Diagnostics, but the experience of a healthcare professional's experience of putting 17 people onto the SmartGuide in one week, running group onboarding sessions, and asking them to come back and tell her what actually happened. Her host, John Pemberton, is founder of The Glucose Never Lies® and a person living with T1D.
This episode covers:
- Why MDI has been stuck at Generation 1 while pump technology moved through five iterations
- Night Low Predict: RAG ratings, first-half versus second-half of the night, and how to teach it
- Glucose Predict: the 45-minute action window versus the two-hour awareness window
- What 17 early adopters actually reported back
- How the 45-minute look ahead reduces the rage bolus
- Why calibration is an educational opportunity, not a drawback
- CGM market saturation and the DTN quality standard
- The DTN Competency Assessment Framework: four tiers, self-assessment, a training passport for clinicians
- GNL Grace in clinical practice: Amy's feedback from a specialist service supporting 700 AID users
Show notes: https://theglucoseneverlies.com/accu-chek-smartguide-mdi-cgm-series/
Have more questions? Ask GNL Grace, a diabetes educational advisor built by a team with skin in the game. Grace gets you 80% of the way there with 20% of the effort; the final 20% takes self-discovery, guided by human expertise and trial-and-error learning. https://theglucoseneverlies.com/gnl-grace/
---
Disclaimer
This podcast is for education and informational purposes only. It does not constitute medical advice and is not a substitute for individualised care.
The Glucose Never Lies® is independent by design
We do not accept sponsorships and advertising. We operate via education grants and donations from listeners who value independence. So, consider:
Buying the GNL a Coffee: https://www.buymeacoffee.com/gnlfree
Enquiries
Collaboration: John Pemberton, [email protected]
Creatives: Anjanee Kohli, [email protected]
Follow The Glucose Never Lies®
Website: https://theglucoseneverlies.com/
Instagram: https://www.instagram.com/theglucoseneverlies
LinkedIn: https://www.linkedin.com/company/theglucoseneverlies
LinkedIn John Pemberton: https://www.linkedin.com/in/john-pemberton-587104361/
LinkedIn Anjanee Kohli: https://www.linkedin.com/in/anjanee-kohli-chohan-1b22a217b/
Instagram Anjanee Kohli: https://www.instagram.com/anjanee.dietitian
X: https://twitter.com/GlucoseNLies
Disclaimer
This podcast is for education and informational purposes only. It does not constitute medical advice and is not a substitute for individualised care.
The Glucose Never Lies® is independent by design
We do not accept sponsorships and advertising. We operate via education grants and donations from listeners who value independence. So, consider:
Buying the GNL a Coffee:
https://buymeacoffee.com/gnlfree
Enquiries
Collaboration: John Pemberton — [email protected]
Creatives: Anjanee Kohli — [email protected]
Follow The Glucose Never Lies®
Website: https://theglucoseneverlies.com/
Instagram: https://www.instagram.com/theglucoseneverlies
LinkedIn: https://www.linkedin.com/company/theglucoseneverlies
LinkedIn: John Pemberton: https://www.linkedin.com/in/john-pemberton-587104361/
X: https://twitter.com/GlucoseNLies
Disclaimer
This content is for informational purposes only and does not constitute medical advice.
© The Glucose Never Lies Ltd. All rights reserved.
...more
58min
April 27, 2026 Episode 39: Abbott FreeStyle Libre - Accuracy, Simplicity and What's Next
Suggest guests or get in contact
Michael Skarlatos from Abbott UK Medical Affairs joins John Pemberton for the second manufacturer episode of the CGM Series. A former diabetes specialist dietitian at University Hospitals of Leicester, Michael brings real clinical experience to an honest breakdown of the FreeStyle Libre 2 Plus and 3 Plus.
This episode covers:
- Why Abbott accuracy data qualifies these sensors for insulin dosing: ICGM approved, 20/20 performance ~95-96%, outside-40/40 error rate 0.2%
- What 70% smaller means in practice: form factor, stigma, and the all-in-one applicator on Libre 3 Plus
- Pump integrations now and the roadmap: CamAPS FX, Omnipod 5, and what is coming
- Libreview: why Abbott moved off Glooko and what population health management enables
- Libreview Pro in SystmOne and EMIS with SNOMED-coded CGM metrics
- A critical data nuance: glucose measured every minute on the patient app but recorded every 5 minutes in clinical downloads
- Continuous ketone monitoring: what Abbott has in development and who benefits most
CHAPTERS
00:00 Introduction and CGM Series overview
00:57 Michaels background and Leicester NHS Trust
02:25 Moving from NHS to Abbott Medical Affairs
03:27 Accuracy credentials: ICGM approval and 20/20 performance
05:44 FreeStyle Libre 3 Plus: size and form factor
09:25 Pump integrations: CamAPS FX, Omnipod 5, and the roadmap
10:19 ICGM interoperability: US vs CE marking in Europe
12:05 Fifteen-day wear period
12:28 Abbott market history: free samples and patient-led adoption
14:04 Simplicity of onboarding and multi-language support
16:58 Starter clinics: taking onboarding off the HCP
19:33 Libreview and population health management
23:21 EHR integration, SNOMED codes, and QOF implications
25:46 Practical tips: Bluetooth connectivity and the app cache
29:23 Minute-by-minute data vs five-minute trend recording
30:58 Low glucose event thresholds and hypo underreporting
31:42 Continuous ketone monitoring: what is coming from Abbott
37:52 CGM beyond type 1 and patient advocacy
40:17 Closing thoughts
LINKS
Show notes: https://theglucoseneverlies.com/episode-38-freestyle-libre-abbott/
YouTube: https://youtu.be/IW1sa5APHU8
CGM Series: https://theglucoseneverlies.com/10-13-cgm-series/
GNL Explorers: https://theglucoseneverlies.com/gnl-grace/
Buzzsprout: https://www.buzzsprout.com/2451357/18982022
Apple Podcasts: https://podcasts.apple.com/gb/podcast/the-glucose-never-lies/id1795741144
Spotify: https://open.spotify.com/show/2MlGlz2G8LsbDnuGtAh77W
This content is for educational exploration only. Not medical advice.
Support GNL: https://buy.stripe.com/9B63cx4UO3KEdKC0Sp7Re00
The Glucose Never Lies® is a registered trademark of The GNL Ltd. Company No. 16733595. UK VAT No. GB 516 3272 08.
Disclaimer
This podcast is for education and informational purposes only. It does not constitute medical advice and is not a substitute for individualised care.
The Glucose Never Lies® is independent by design
We do not accept sponsorships and advertising. We operate via education grants and donations from listeners who value independence. So, consider:
Buying the GNL a Coffee:
https://buymeacoffee.com/gnlfree
Enquiries
Collaboration: John Pemberton — [email protected]
Creatives: Anjanee Kohli — [email protected]
Follow The Glucose Never Lies®
Website: https://theglucoseneverlies.com/
Instagram: https://www.instagram.com/theglucoseneverlies
LinkedIn: https://www.linkedin.com/company/theglucoseneverlies
LinkedIn: John Pemberton: https://www.linkedin.com/in/john-pemberton-587104361/
X: https://twitter.com/GlucoseNLies
Disclaimer
This content is for informational purposes only and does not constitute medical advice.
© The Glucose Never Lies Ltd. All rights reserved.
...more
42min
April 20, 2026Episode 38: Q1 2026 Quarterly Review, GNL Grace, the Explorers, and What Changed
Suggest guests or get in contact
Three months ago, GNL was a website full of excellent content that was genuinely hard to find. In Episode 38, John Pemberton and Creative Director Anjanee Kohli talk through what happened next: a complete website rebuild, five interactive explorers, the launch of GNL Grace, and the evidence base behind it, drawn from approximately 500,000 patient-days across roughly 1,300 people living with diabetes over more than 10 years.
In this episode:
CGM guide update and the five-out-of-five accuracy chart
How the five GNL Explorers work and how clinicians are using them in practice
GNL Grace: a bounded AI educational advisor built on 2,000 curated citations
Grace: a 30-day free trial for everyone, then Personal at £5 a month and HCP at £20 a month
Real-world validation: approximately 500,000 patient-days across roughly 1,300 people living with diabetes over more than 10 years
Why the skill of the future in healthcare is compassion, not knowledge
Phil Hayes joining as Technical Director
GNL merch and the Diabetes UK giveaway
Chapters:
00:00 Introduction
01:55 GNL Grace announcement
02:32 CGM guide and accuracy chart
05:30 Phil Hayes and the explorer infrastructure
09:40 GNL Grace: the six-layer bounded AI
10:50 Grace tiers explained
13:31 Grace Max: manuscript-grade output
17:31 Real-world validation: the evidence base behind Grace
19:58 The skill of the future is compassion
30:09 What went wrong and lessons learned
35:06 GNL merch
36:10 Closing
Links:
Show notes: theglucoseneverlies.com/episode-38-quarterly-review
GNL Grace: theglucoseneverlies.com/gnl-grace
GNL Explorers: theglucoseneverlies.com/gnl-explorers
CGM Series hub: theglucoseneverlies.com/10-13-cgm-series
Host: John Pemberton. Director of Creativity: Anjanee Kohli.
This content is for educational exploration only. It is not medical advice and cannot replace individual clinical guidance from your diabetes care team.
Support GNL: https://www.buymeacoffee.com/gnlfree
The Glucose Never Lies® is a registered trademark of The GNL Ltd. Company No. 16733595. UK VAT No. GB 516 3272 08.
Disclaimer
This podcast is for education and informational purposes only. It does not constitute medical advice and is not a substitute for individualised care.
The Glucose Never Lies® is independent by design
We do not accept sponsorships and advertising. We operate via education grants and donations from listeners who value independence. So, consider:
Buying the GNL a Coffee:
https://buymeacoffee.com/gnlfree
Enquiries
Collaboration: John Pemberton — [email protected]
Creatives: Anjanee Kohli — [email protected]
Follow The Glucose Never Lies®
Website: https://theglucoseneverlies.com/
Instagram: https://www.instagram.com/theglucoseneverlies
LinkedIn: https://www.linkedin.com/company/theglucoseneverlies
LinkedIn: John Pemberton: https://www.linkedin.com/in/john-pemberton-587104361/
X: https://twitter.com/GlucoseNLies
Disclaimer
This content is for informational purposes only and does not constitute medical advice.
© The Glucose Never Lies Ltd. All rights reserved.
...more
37min
April 13, 2026 Episode 37: Dexcom G7 and ONE+| Adam Dawes | GNL Podcast
Suggest guests or get in contact
Most people with T1D have switched their CGM high alert off. Not because they do not care - because it goes off every time they eat and there is nothing they can do about it. Episode 37 is about what Dexcom built to fix that.
Adam Dawes, Senior Medical Affairs Manager at Dexcom UK and Ireland - and a former paediatric diabetes nurse specialist - joins John Pemberton for the third manufacturer episode of the CGM Series. An honest clinical conversation about the Dexcom G7 and ONE+, what separates them, and where Dexcom is heading next.
This episode covers:
- Dexcom G7 vs Dexcom ONE+: same hardware platform, different software, and what that means for matching the right sensor to the right patient
- Delay 1st Alert: why it is one of the most underused alerts in CGM, how it eliminates alarm fatigue without reducing safety, and how John uses it himself
- AID integrations: Tandem T:slim X2, Omnipod 5, mylife, and the Tandem Mobi
- CGM for type 2 diabetes: the biofeedback argument and why immediate glucose feedback changes behaviour in ways a quarterly HbA1c never can
- The Dexcom roadmap from ATTD 2026: 15-day sensor, Dexcom G8 next generation sensor, EPIC integration, Clarity updates, and generative AI
- Why insulin dosing will never be a commodity market - and what people with T1D need to understand as new CGMs enter the UK
- The FDA manufacturing findings: what happened, how Dexcom responded, and why the new Ireland factory matters
Show notes: https://theglucoseneverlies.com/episode-37-dexcom-g7-one-plus/ | CGM Series: https://theglucoseneverlies.com/10-13-cgm-series/
Have more questions about CGM, the Dexcom G7 or ONE+? Ask GNL Grace: https://theglucoseneverlies.com/gnl-grace/
Support GNL: https://buy.stripe.com/9B63cx4UO3KEdKC0Sp7Re00
The Glucose Never Lies® is a registered trademark of The GNL Ltd. Company No. 16733595. UK VAT No. GB 516 3272 08.
Disclaimer
This podcast is for education and informational purposes only. It does not constitute medical advice and is not a substitute for individualised care.
The Glucose Never Lies® is independent by design
We do not accept sponsorships and advertising. We operate via education grants and donations from listeners who value independence. So, consider:
Buying the GNL a Coffee:
https://buymeacoffee.com/gnlfree
Enquiries
Collaboration: John Pemberton — [email protected]
Creatives: Anjanee Kohli — [email protected]
Follow The Glucose Never Lies®
Website: https://theglucoseneverlies.com/
Instagram: https://www.instagram.com/theglucoseneverlies
LinkedIn: https://www.linkedin.com/company/theglucoseneverlies
LinkedIn: John Pemberton: https://www.linkedin.com/in/john-pemberton-587104361/
X: https://twitter.com/GlucoseNLies
Disclaimer
This content is for informational purposes only and does not constitute medical advice.
© The Glucose Never Lies Ltd. All rights reserved.
...more
54min
March 29, 202636: CGM Series - CGM Accuracy, DSN Reality Checks and the Future of Diabetes Technology
Suggest guests or get in contact
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.diabetesspecialistnurseforumuk.co.uk/new-cgm-comparison-chart
CGM Guide Part 2 — Assessing CGM Accuracy: https://theglucoseneverlies.com/assessing-cgm-accuracy-performance/
GNL AID System Explorer: https://theglucoseneverlies.com/aid-system-explorer/
Episode 35 — Professor Othmar Moser on CGM Study Design: https://theglucoseneverlies.com/episode-35-cgm-series-the-importance-of-cgm-accuracy-and-study-design-with-professor-othmar-moser/
Educational purposes only. Not medical advice. Always work with your diabetes care team.
Support GNL: https://buy.stripe.com/9B63cx4UO3KEdKC0Sp7Re00
The Glucose Never Lies® is a registered trademark of The GNL Ltd. Company No. 16733595. UK VAT No. GB 516 3272 08.
Disclaimer
This podcast is for education and informational purposes only. It does not constitute medical advice and is not a substitute for individualised care.
The Glucose Never Lies® is independent by design
We do not accept sponsorships and advertising. We operate via education grants and donations from listeners who value independence. So, consider:
Buying the GNL a Coffee:
https://buymeacoffee.com/gnlfree
Enquiries
Collaboration: John Pemberton — [email protected]
Creatives: Anjanee Kohli — [email protected]
Follow The Glucose Never Lies®
Website: https://theglucoseneverlies.com/
Instagram: https://www.instagram.com/theglucoseneverlies
LinkedIn: https://www.linkedin.com/company/theglucoseneverlies
LinkedIn: John Pemberton: https://www.linkedin.com/in/john-pemberton-587104361/
X: https://twitter.com/GlucoseNLies
Disclaimer
This content is for informational purposes only and does not constitute medical advice.
© The Glucose Never Lies Ltd. All rights reserved.
...more
52min
March 23, 202635: CGM Series - The Importance of CGM Accuracy and Study Design with Professor Othmar Moser
Suggest guests or get in contact
CGM Series | The Glucose Never Lies® Podcast
CGM accuracy is usually described with a single number: MARD. But a low MARD can hide significant risk if the study behind it was poorly designed. Professor Othmar Moser — one of the leading independent CGM accuracy researchers — explains what study design actually determines, why meal and insulin challenges are non-negotiable, and what people with type 1 diabetes and clinicians should look for when evaluating any accuracy claim.
In this episode:
What MARD is and why it misleads when used in isolation
The five study design questions that determine what accuracy data actually means
Why 20/20 and 40/40 agreement rates reveal what MARD cannot
Why meal and insulin challenges are essential for real-world accuracy testing
What CE marking does and does not guarantee about CGM performance
Why peer-reviewed, independent evidence is the gold standard — and how little of what is cited meets it
How study design quality shapes what we actually know about CGM risk
Professor Moser's perspective as a researcher who designs and runs these studies
Guest: Professor Othmar Moser, Medical University of Graz, Austria. Leading figure in independent CGM accuracy study design and insulin-related exercise physiology research in type 1 diabetes.
Links:
Full show notes: https://theglucoseneverlies.com/episode-35-cgm-series-the-importance-of-cgm-accuracy-and-study-design-with-professor-othmar-moser/
CGM Guide Part 2 — Assessing CGM Accuracy: https://theglucoseneverlies.com/assessing-cgm-accuracy-performance/
CGM Guide Part 1 — How to Choose a CGM: https://theglucoseneverlies.com/select-continuous-glucose-monitor-cgm-understanding/
Episode 36 — DSN Forum: CGM Accuracy and ATTD 2025: https://theglucoseneverlies.com/episode-36-cgm-accuracy-dsn-forum/
Watch on YouTube: https://youtu.be/zTdTps42kQ8
Educational purposes only. Not medical advice. Always work with your diabetes care team.
Support GNL: https://buy.stripe.com/9B63cx4UO3KEdKC0Sp7Re00
The Glucose Never Lies® is a registered trademark of The GNL Ltd. Company No. 16733595. UK VAT No. GB 516 3272 08.
Disclaimer
This podcast is for education and informational purposes only. It does not constitute medical advice and is not a substitute for individualised care.
The Glucose Never Lies® is independent by design
We do not accept sponsorships and advertising. We operate via education grants and donations from listeners who value independence. So, consider:
Buying the GNL a Coffee:
https://buymeacoffee.com/gnlfree
Enquiries
Collaboration: John Pemberton — [email protected]
Creatives: Anjanee Kohli — [email protected]
Follow The Glucose Never Lies®
Website: https://theglucoseneverlies.com/
Instagram: https://www.instagram.com/theglucoseneverlies
LinkedIn: https://www.linkedin.com/company/theglucoseneverlies
LinkedIn: John Pemberton: https://www.linkedin.com/in/john-pemberton-587104361/
X: https://twitter.com/GlucoseNLies
Disclaimer
This content is for informational purposes only and does not constitute medical advice.
© The Glucose Never Lies Ltd. All rights reserved.
...more
1h
March 04, 2026 34 — Building High-Performance Type 1 Diabetes Care: Technology, Targets, and Equity (Dr Peter Adolfsson)
Suggest guests or get in contact
How do some countries consistently achieve lower HbA1c and better outcomes in type 1 diabetes while others struggle — even with the same technologies?
In this episode, John Pemberton speaks with Dr Peter Adolfsson, paediatric diabetologist in Sweden and lead author of the ISPAD 2022 Exercise Guidelines, about what actually drives population-level improvements in type 1 diabetes care.
Full show notes:
https://theglucoseneverlies.com/episode-34-building-high-performance-type-1-diabetes-care-technology-targets-and-equity-dr-peter-adolfsson/

KEY TOPICS
• How Sweden’s national diabetes registry drives accountability and rapid improvement
• Why structured onboarding and early follow-up are essential for CGM and AID success
• The role of national collaboration between clinics to share best practice
• Why the highest HbA1c group should often be first in line for AID systems
• Moving toward time in tight range (3.9–7.8 mmol/L) as the next clinical target
• Equity in diabetes technology: checking subconscious bias with real data
• Why celebrating small improvements builds long-term engagement
WHAT YOU’LL LEARN
✓ Why early investment in education and follow-up changes long-term outcomes
✓ How national benchmarking between clinics improves diabetes care
✓ Why targets matter — changing what you measure changes what improves
✓ How to use AID systems strategically for people struggling with bolusing
✓ Why the first two years after diagnosis are a critical window for glycaemic outcomes
✓ The importance of psychology, social support, and multidisciplinary teams
FUTURE OF TYPE 1 DIABETES CARE
• AI-supported platforms that analyse CGM data continuously
• Clinics responding earlier when glucose control deteriorates
• Personalised therapy combining insulin with adjunct treatments (e.g., GLP-1RA)
• More flexible care models where stable patients may need fewer clinic visits
Support GNL: https://buy.stripe.com/9B63cx4UO3KEdKC0Sp7Re00
The Glucose Never Lies® is a registered trademark of The GNL Ltd. Company No. 16733595. UK VAT No. GB 516 3272 08.
Disclaimer
This podcast is for education and informational purposes only. It does not constitute medical advice and is not a substitute for individualised care.
The Glucose Never Lies® is independent by design
We do not accept sponsorships and advertising. We operate via education grants and donations from listeners who value independence. So, consider:
Buying the GNL a Coffee:
https://buymeacoffee.com/gnlfree
Enquiries
Collaboration: John Pemberton — [email protected]
Creatives: Anjanee Kohli — [email protected]
Follow The Glucose Never Lies®
Website: https://theglucoseneverlies.com/
Instagram: https://www.instagram.com/theglucoseneverlies
LinkedIn: https://www.linkedin.com/company/theglucoseneverlies
LinkedIn: John Pemberton: https://www.linkedin.com/in/john-pemberton-587104361/
X: https://twitter.com/GlucoseNLies
Disclaimer
This content is for informational purposes only and does not constitute medical advice.
© The Glucose Never Lies Ltd. All rights reserved.
...more
52min

FAQs about The Glucose Never Lies® Podcast:

How many episodes does The Glucose Never Lies® Podcast have?

The podcast currently has 44 episodes available.

More shows like The Glucose Never Lies® Podcast

No Such Thing As A Fish by No Such Thing As A Fish

No Such Thing As A Fish

4,870 Listeners

The School of Greatness by Lewis Howes

The School of Greatness

21,141 Listeners

Juicebox Podcast: Type 1 Diabetes by Scott Benner

Juicebox Podcast: Type 1 Diabetes

1,633 Listeners

Diabetes Connections | Type 1 Diabetes by Stacey Simms

Diabetes Connections | Type 1 Diabetes

216 Listeners

No Filter by Mamamia Podcasts

No Filter

637 Listeners

The Diary Of A CEO with Steven Bartlett by DOAC

The Diary Of A CEO with Steven Bartlett

8,748 Listeners

The Peter Attia Drive by Peter Attia, MD

The Peter Attia Drive

7,995 Listeners

Off Menu with Ed Gamble and James Acaster by Plosive

Off Menu with Ed Gamble and James Acaster

2,682 Listeners

Type 1 on 1 | Diabetes Stories by Jen Grieves

Type 1 on 1 | Diabetes Stories

20 Listeners

My Therapist Ghosted Me by Global

My Therapist Ghosted Me

844 Listeners

ZOE Science & Nutrition by ZOE

ZOE Science & Nutrition

2,040 Listeners

The News Agents by Global

The News Agents

1,183 Listeners

Diabetech - Diabetes Tech, Research, News by Justin Eastzer

Diabetech - Diabetes Tech, Research, News

51 Listeners

Type 1 In Midlife: Perimenopause, Menopause & Type 1 Diabetes by Melissa Slemp

Type 1 In Midlife: Perimenopause, Menopause & Type 1 Diabetes

27 Listeners

Beyond the Bolus - Diabetes Technology Education for Healthcare Providers by Insulet, Maker of Omnipod

Beyond the Bolus - Diabetes Technology Education for Healthcare Providers

14 Listeners