The Glucose Never Lies®

Type 1 diabetes isn’t static. It’s a moving target.

It’s shaped by ever-changing biology, behaviour, mindset, stress, sleep, hormones, and environment.

The idea that one plan works for everyone is a fantasy.

The Glucose Never Lies exists for one purpose: to provide people with type 1 diabetes — and those who support them — with a clear, evidence-informed framework for self-discovery, grounded in what actually happens in real life.

Our philosophy: The Glucose Never Lies

The glucose result is the only unbiased feedback loop in type 1 diabetes. It shows what works and what doesn’t — not what “should” work according to theory, algorithms, or opinion.

Your response might sit anywhere on the spectrum of possibilities, and it can shift over time. That’s reality, not failure.

Glucose is information, not judgment.

Self-discovery, built on strong foundations

The Glucose Never Lies is built on a simple sequence: foundations first, then self-discovery.

Strong foundational knowledge is non-negotiable. Without it, experimentation becomes guesswork, and risk rises quickly. That’s why the first part of GNL focuses on locking in safety, core principles, and baseline competence — solid ground you can actually stand on.

Once foundations are in place, progress comes from observing real glucose responses and adapting based on evidence, not assumptions. This is where self-discovery matters. Learning what works for you requires small, safe experiments, attention to patterns, and a willingness to revise your approach when the data disagree.

To support that process, we’ve built a best-in-class set of guides designed for safe and effective exploration through trial and error. They cover the full reality of living with type 1 diabetes — movement and exercise, everyday activity, food and insulin, partying and alcohol, technology such as CGM and AID systems, and the pharmacology that underpins it all.

These guides aren’t rules or routines. They’re frameworks. You use what’s relevant now, ignore what isn’t, and return as your needs change.

At the centre of everything is the same loop:

Experiment → Learn → Adapt → Repeat

There is no single right way to live with type 1 diabetes — only approaches that are tested against reality. GNL exists to help you test safely, think clearly, and keep learning.

Stay curious and stay open. Ongoing learning happens through the GNL Podcast and the GNL Weekly Brief, with the Resource Hub housing key guides, FAQs, and practical downloads.

Disclaimer

The content available via The Glucose Never Lies® platform is for informational purposes only. Reading or listening to the content does not constitute medical advice and is not a substitute for individualised care, and does not create a clinician–patient or therapeutic relationship. Always discuss any changes to your diabetes management with your healthcare team.

Why this platform exists

In 2019, our family received a call that changed everything: my son, Jude, screened positive for type 1 diabetes auto-antibodies. I combined my clinical work, research experience and nearly two decades of life with T1D to build the education resource I wished existed when I was diagnosed at 27.

 

Two months later, Jude’s confirmatory test was negative — a false positive, which happens around 5% of the time. Relief, yes. But the experience made one thing clear: families and adults with T1D need access to clarity, not noise.

This platform is built for them — and for you.

How the GNL evolved

From 2019–2022 the GNL grew organically: short bursts of research, writing, experimentation and honest conversations with the T1D community. In 2025, the GNL Podcast launched and brought the mission to life — making complex diabetes science accessible, practical and human.

Independence and funding

The Glucose Never Lies Ltd was incorporated in 2025, supported by world-class scientific advisors and a clear governance structure. The goal is simple: keep the information accurate, practical and free from commercial distortion.

The platform is powered mainly by the community — people with type 1 diabetes, parents, partners and supporters. If our work helps you, consider supporting it:

Support the GNL Podcast

Weekly Episodes — Fund with £15 / month Bi-weekly Episodes — Fund with £8 / month Monthly Episodes — Fund with £4 / month One-off Donation — Buy Me a Coffee

 

Here’s one example of the philosophy in action — Grace showing how a bit of movement can rapidly bring glucose back into range.

 

How is the GNL written?

Most sections have two layers. The first is written for people like my wife, Dani: clear, practical “how to” with minimal jargon. The second goes deeper into the physiology, psychology and data for those who want the underlying “why”.

You don’t have to read both. Take what you need, when you need it.

Where to go next?

  • Foundations — Required education for safe, effective T1D management.
  • Guides — Frameworks for self-discovery and thriving with T1D.
  • Podcast — Conversations on real-world T1D management.
  • Resource Hub — Guides, FAQs, and practical downloads.
  • About — The people and principles behind The Glucose Never Lies.

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5 thoughts on “The Glucose Never Lies®”

  1. Hello

    Great pods casts, I’ve not finished them yet. I’ve been T1 for 45 yrs, everyday is still a learning day.
    Currently I’m using Libre 2 plus & Omnipod 5, with humalog. after some inital bedding in problems I’m now achieving 90 day averages of 87% TIR with far fewer manual corrections than before.
    A question, in the blog you suggest turning the insulin time down to 2hrs, this leaves me with a an incorrect IOB figure (which I use regularly) any suggestions?

    1. Hey!

      It’s a challenging one.

      Setting the active insulin at 2 hrs is helpful to allow more user given corrections. It should really be called an aggressiveness setting not active insulin!

      But

      It means if you prefer to know how much is working in your body you would need it set close to 3-4 hours but you will get less aggressive user corrections!

      You gotta decide what’s the best balance for you!

      Hope that helps

      John

  2. Do you have versions of your “Minimed 780G How to Survive” guides showing Imperial Units (pounds) instead of metric units (kg)?

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