The Glucose Never Lies®
Independent T1D education.
Built on evidence.
Grounded in lived experience.
The 20% of T1D education that gets you 80% of the way there.
Validated against 1.5 million patient-days of real-world data. The other 20% is yours – self-discovery with your CGM, guided by your diabetes team, your community, and the people who support you.
Validation dataset: Cockpit 1.0/daily dataset, Syno by Syntactiq Dynamics FlexCo (syntactiq.ai).
The philosophy
The 20% that changes everything.
Decades of diabetes education has added complexity. More variables. More rules. More anxiety. GNL does the opposite.
We identified the handful of things – insulin on board, glucose trend, starting glucose, therapy type – that explain the vast majority of glucose outcomes. We built everything around those. We removed the rest.
Every guide, every explorer, every podcast episode, and every answer Grace gives follows the same principle: major in the majors. If it does not change the outcome, it does not get airtime.
“Remove what is unnecessary. Own what remains. Build from there.” – Via Negativa
How to use GNL
Start with Grace. Go as deep as you want.
Your diabetes education adviser
GNL Grace
Tell Grace what you want to know about. She searches every guide, every podcast episode, and a research engine spanning thousands of clinical papers – then answers in language that fits your background, your device, and your situation.
Ask Grace where to start →Or explore on your own:
The essential building blocks – insulin, carbohydrate, activity, CGM, and glucose patterns.
Use your own numbers. Six interactive tools covering exercise, AID systems, hypos, and more.
Go deeper. In-depth guides on IOB, CGM technology, AID systems, exercise physiology.
The platform
Everything GNL has built – in one place
The essential building blocks of type 1 diabetes – insulin, carbohydrate, activity, CGM, and glucose patterns. The framework the rest of GNL builds on.
Start with Foundations →Six interactive tools covering AID systems, exercise physiology, hypo and hyper management, and exercise carbohydrate estimation. Use your own numbers.
Open the Explorers →In-depth guides covering insulin on board, CGM technology, AID systems, exercise physiology, and more. Each guide invites you to test it against your own data.
Browse the Guides →Ask Grace anything. She searches 150+ pages, 40+ episodes, and a research engine spanning thousands of clinical papers – and responds in language that fits you.
Ask Grace →Over 40 episodes covering the science, technology, and lived experience of T1D. World-leading researchers, clinicians, and people living with the condition.
Listen now →Real experiences from people living with type 1 diabetes – exploring what it means to manage a condition that never takes a day off.
Read Stories →Knowledge Educator
Meet GNL Grace
Grace makes everything GNL has built accessible in a single question. Over 150 pages, 20 guides, 40+ podcast episodes, and a research engine spanning thousands of clinical papers – all validated against 1.5 million+ patient-days of real-world T1D data (Cockpit 1.0/daily dataset, Syno by Syntactiq Dynamics FlexCo).
Tell her your device, your total daily dose, your main challenge – and she responds in language that fits your background and situation. She is not a search box. She is a knowledge educator built to tell you what the research actually says.
What’s new
Recently published
How GNL Works
The evidence, the algorithms, GNL Grace, and what all of it can and cannot do. Every explorer’s methodology, evidence grade, and real-world validation – in one place.
Read the full methodology →CGM Guide for Type 1 Diabetes
The structured CGM guide built with the DSN Forum UK. Five-question framework, accuracy data, device comparison, and a selector to find your best match.
Explore the CGM Guide →The IOB Trade-Off
How AID systems see insulin differently – and why the gap between device-reported IOB and true insulin exposure matters more than most people realise.
Read the article →The team
Built by clinicians, researchers, and creators
United by science, storytelling, and lived experience with type 1 diabetes.
Registered Dietitian and Diabetes Specialist, Birmingham Women’s and Children’s NHS Foundation Trust. Creator of GNL, the Explorers, and the Grace knowledge educator.
Registered Dietitian and Diabetes Specialist, BWC NHS Trust. Director of creativity and community at GNL – podcast, visual content, and the GNL voice.
Lead developer behind the GNL Explorers and platform infrastructure. Designed and built the interactive tools and the Grace API endpoint.
Stanford University. Exercise physiology and T1D – independent scientific review and challenge on every GNL output.
University of Graz. AID systems and exercise – world-leading research in real-world T1D management with technology.
Independent scientific review and challenge – ensuring every GNL output is rigorous, accurate, and grounded in current evidence.
Contact
Get in touch
We welcome opportunities for consultancy, educational projects, speaking engagements, and content development.
The Glucose Never Lies® is a registered trademark (UK00004267795). GNL is an independent education platform – not a medical device, not a clinic, and not a substitute for clinical advice. All content is for education and discussion only. How GNL Works · Full Disclaimer · Privacy