Before you ask Grace
Grace is in beta. She is still being built and tested. Her answers may change from the ones you see today, and you may find mistakes.
Grace teaches, she does not treat. What she teaches is built from research on groups of people, so it is a population average. It is not advice about you, not a prescription, and never a personal dose. The tools compare and explain: they are not a medical device, and nothing here is a recommendation or an endorsement of any product. Anything that matters goes to your own diabetes team. She will never tell you how much insulin to take.
A printed page can go out of date. If you print a card or a guide, check its version and date against this page before you rely on it.
You can use Grace from age 13. Under 13, use Grace together with a parent or carer. Anyone can read; these lines are about asking Grace questions. Grace writes in plain English, and most people can read her without help.
We keep the conversation. What you say to Grace and what she says back is stored on our server, so that if something Grace said is ever questioned we can see what was actually said, and so we can make her better. Grace on this page does not ask who you are, so no name or account is attached unless you type one into a message. How long we keep it is set out in the privacy policy.
Tell us when something is wrong. Email john@theglucoseneverlies.com if you find a mistake or something that does not work.
Your choices are kept for this browser tab only and are forgotten when you close it.
GNL Grace
Ask Grace?
The diabetes educational adviser,
right here on this page
You are reading about insulin on the move, or a hypo that will not lift, or a CGM trace that does not match how you feel. The question arrives in the middle of ordinary life, not in a clinic slot. Grace is there for that moment. Ask her anything about living with type 1 diabetes, in plain language, on any page of this site, and she answers from a graded evidence base rather than a guess. She will tell you what is well understood, what is still emerging, and where a decision belongs with your own care team.
Grace is ready now. Open the Chat tab to ask her anything, or try the Explorers tab to run the educational tools.
How Grace works
One conversation, right where you are.
Grace is a conversational adviser, not a chatbot that reaches for a script. She lives right here on the Grace page, so you can ask the moment a question comes up. Open the Chat tab, ask in your own words, and keep the thread going as long as you need.
You can ask her the things that rarely fit into an appointment. What tends to happen to glucose on a long walk. Why a correction sometimes stacks. How different devices think about insulin on board. What the evidence actually says about alcohol and an overnight low. She meets you where you are, names the work you are already doing, and builds from there rather than talking down to you.
She holds two lines firmly. She will not tell you to take a specific dose or make a clinical decision for you; that stays with you and the people who know your history. And she will be honest about the edges of the evidence instead of dressing up a strong opinion as settled fact.
Grace is ready now. Open the Chat tab to ask her anything, or try the Explorers tab to run the educational tools.
The question in the moment
A high before a meal, a stubborn overnight pattern, a reading that does not sit right. Ask it as it happens, in your own words.
What the research says
Grace draws on a graded evidence base and tells you the grade, so you can see the difference between well established and still emerging.
How your kit behaves
Ask how CGM, pumps and hybrid closed-loop systems actually work, so the technology stops being a black box.
Where it belongs with your team
Grace advises and explains; she points clinical decisions back to your care team rather than pretending to replace them.
Educational tools
The seven Explorers
Seven deterministic educational tools, each grounded in the same evidence base as Grace. None of them outputs a personalised dose. Every result is a starting point for a conversation with your diabetes care team, not the end of one.
Population-average estimates, not personalised doses. Every result starts a conversation with your diabetes care team, never ends one.
Open any of these in the Explorers tab above, or ask Grace about them in the Chat tab.
Why we built her this way
Teach the twenty percent that lets you learn the eighty percent that matters.
Most type 1 education tries to pour everything in at once, then wonders why so little sticks. We took the opposite view. Grace is built to hand you the small number of ideas that unlock the rest, so that the next thing you learn has somewhere to land. She subtracts before she adds. If an answer needs a wall of caveats to stand up, the honest move is usually to say less and say it clearly.
“We only put in front of you what we would use ourselves, and give to the people we love.”
Tools you can use right now
Built into the pages you read.
Some tools live where the reading happens. As you work through a guide, the relevant chooser or finder is embedded in the page, so you can move from understanding to a concrete comparison without leaving the article. Grace sits alongside all of them, ready for the follow-up question. These are educational and use population-average reasoning; they are not personalised prescriptions, and they always point you back to your own settings and your own team.
CGM Selector
Compare continuous glucose monitors in context, inside the CGM guide.
Open the CGM guideAID Selector
Compare automated insulin delivery systems where the guide explains them.
Open the AID guideStart where you are
The next question is the one worth asking.
You do not need a plan or a login ritual to begin. Open the Chat tab and put the real question, the one you have been carrying around. She will meet you with evidence, honesty about what is uncertain, and a steady nudge back to your own care team where the decision is truly yours.
Grace is ready now. Open the Chat tab to ask her anything, or try the Explorers tab to run the educational tools.
Your choices
You can see what you have agreed to, and change any of it, at any time. Your choices are kept for this browser tab only and are forgotten when you close it.
Keep Grace free
GNL Partners
Grace is free to use. Three organisations make that possible, and none of them decides what Grace says.

Educational grant
Abbott Diabetes Care
Abbott Diabetes Care makes the FreeStyle Libre family of continuous glucose monitors, used by people with diabetes across the UK and internationally, standalone and as the sensor inside several automated insulin delivery systems.
Their educational grant funds the podcast series and the tools built so that people living with diabetes, clinicians and researchers can understand CGM independently of any one manufacturer.
On GNL
The Abbott FreeStyle Libre guide Podcast, Episode 39: FreeStyle Libre 2 Plus and 3 Plus Visit Abbott Diabetes Care →
Educational grant
Tandem Diabetes Care
Tandem Diabetes Care makes insulin pumps and the Control-IQ automated insulin delivery algorithm, which runs on both the t:slim X2 and the smaller Mobi pump body.
Their educational grant supports the same independent, evidence-based education, which is what Grace, the Explorers, the Tech guides and the Tech selectors all grew out of.
On GNL
Tips and tricks for t:slim X2 with Control-IQ Podcast, Episode 43: Tandem Control-IQ+ and Mobi Podcast, Episode 24: Dr Laurel Messer on skin care Visit Tandem Diabetes Care →
Ongoing partner
Diabetic Health Coach
Vanessa Haydock, Personal Trainer and Board-Certified Behaviour Analyst, a coach living with T1D. Diabetic Health Coach offers online coaching, personal training and behaviour analysis for people with diabetes working towards health, fitness, diabetes or mindset goals, through the Dominating Diabetes coaching programme.
Diabetic Health Coach runs its own Grace inside its client portal, and that ongoing partnership helps keep Grace running for everyone else.
On GNL
Podcast, Episode 29: The Behaviour Change PlaybookHer practice
About Vanessa Online health and fitness coaching Work with Vanessa →Where the money comes from, and what it does not buy
Abbott Diabetes Care and Tandem Diabetes Care fund this work through educational grants.
That funding pays for the work. It does not mean any supporter has reviewed what we publish, and it is not an endorsement of it. The grants were given for the vision and for the quality of the materials, not as unreserved agreement with what we say.
The money exists so that GNL can stay independent and free of bias. Every supporter has the right to withdraw their support at any time, and that right is written into the educational grant contracts all parties have signed.
Want to support this work? John Pemberton is the person to talk to.
john@theglucoseneverlies.com