Via Negativa Health — Clinical & Digital Health Consulting
VIA NEGATIVA HEALTH A GNL LTD COMPANY
Clinical & Digital Health Consulting

Via Negativa Health

Type 1 diabetes has been teaching us about Black Swans since 1921.

We apply that understanding to every business we touch — and we ensure it’s respected by putting our skin in your game.

John Pemberton — Clinical Lead
Phil Hayes — Technical Lead
Skin in the game — always

The name is the method

Via Negativa — wisdom through subtraction

Via Negativa is an ancient principle: the wisest path forward is not to add more, but to remove what is unnecessary. Applied to health business — remove the agency taking a percentage of your profits. Remove the platform you don’t own. Remove the dependency on someone else’s tools and knowledge. Remove the opaque contract that punishes your growth. What remains is yours. Simpler. Stronger. Antifragile. The name is not a brand strategy. It is the operating method.

The Black Swan — 2007
T1D is a Black Swan condition
Unpredictable. High-impact. Poorly explained by looking backwards. Rule-based management fails exactly when you need it most. Deep mechanistic understanding doesn’t. We build on mechanism, not rules.
The Black Swan — Taleb (2007) ↗
Antifragile — 2012
We build things that get stronger
Not polished templates that age. Platforms that improve as knowledge grows, as users engage, as real-world experience accumulates. Via Negativa: strip away the unnecessary until what strengthens remains.
Antifragile — Taleb (2012) ↗
Skin in the Game — 2018
We grow as you grow
We are not a consultancy that charges a day rate and walks away. We price according to your stage. We scale our income when you scale yours. We share the risk because we believe in what we build.
Skin in the Game — Taleb (2018) ↗

“Type 1 diabetes has been teaching us about Black Swans since 1921. Every hypo, every unexplained spike, every device failure at 3am is a reminder that the unpredictable is not the exception — it is the condition. We built The Glucose Never Lies on the principle that understanding mechanisms, not memorising rules, is what makes a person — or a platform — antifragile. We bring that same philosophy to every business we work with. And we ensure it’s respected by putting our skin in your game.”

— John Pemberton & Phil Hayes, Via Negativa Health

Who this is for

People building serious things in the T1D space

We work with practitioners and creators who want to take their offering beyond information — into properly validated, clinically grounded, technically robust practice. This is not a facelift. It’s a whole system.

🩺
T1D Health Coaches
You’re coaching people with T1D and want to ground your programmes in rigorous, evidence-based physiology — not just lived experience alone.
📱
Creators & Educators
You have an audience that trusts you. You want the clinical layer to back up your content and tools your members can actually use.
🏥
Healthcare Professionals
You’re building private or hybrid digital practice and want proven GNL tools and frameworks as the clinical backbone.
🏗️
Digital Health Builders
You’re building a platform, membership, or app and want operators with skin in the game — not advisers who leave when the contract ends.

What’s available

Five things we bring — none of them exist elsewhere in this combination

🔬
Clinical Science Layer
John Pemberton’s credentials, the GNL evidence base, research manuscripts, and clinical frameworks built from published T1D exercise, CGM, AID, and IOB science. Your content becomes citable, defensible, and mechanistically sound.
⚙️
GNL Explorers — Co-branded & White-label
Six algorithm-driven tools built from published clinical trial data: CGM accuracy, exercise-IOB, AID system, hypo and hyper, alcohol and T1D, exercise planning. Unique. Your members get tools that genuinely don’t exist anywhere else.
🏗️
Platform Build — Phil Hayes
Phil Hayes built the GNL API and explorer suite from scratch. Member portals, calculators, custom integrations — built to the same standard as the GNL platform. Not a template. Not a plugin. A proper build.
📄
Content Strategy & Monthly Output
Clinically-grounded guides, explainers, and social frameworks every month — built from the GNL evidence base. You stop spending 10–15 hours a month researching. That time goes back to you.
🎙️
Podcast & Audience Reach
Cross-promotion through The Glucose Never Lies podcast and channels. Guest appearances, collaborative content, co-authored guides. A co-brand that puts you in front of a clinically-engaged T1D audience.

Case Study — The Glucose Never Lies®

We built it for ourselves first. Here’s what happened.

The GNL platform is the proof of concept for everything we offer. Before we brought this to anyone else, we applied every principle — antifragile design, mechanistic content, expert technical build — to our own platform. With our own money at risk.

Before — The Fragile Version
  • 120+ pages of strong clinical content
  • Inconsistent design — no system, no flow
  • Inaccessible to anyone not already searching
  • No tools — content only, nothing interactive
  • No subscription or recurring revenue
  • Brilliant material, locked away
After — The Antifragile Version
  • Full design system — accessible, navigable
  • Six algorithm-driven explorers by Phil Hayes
  • Clinical content findable and usable at scale
  • Explorer subscription — a new business model
  • Educational grants attracted by platform credibility
  • Device manufacturer partnerships created
100%+
Organic traffic growth after rebuild
6
Algorithm-driven tools live — see them ↗
<2 mo
Time to recoup the full build investment
3
New revenue streams created

The investment was significant and the risk was real. It paid back in under two months. Full case study ↗ · Explorers ↗ · theglucoseneverlies.com ↗

How it works

Six months to build something real — then we grow together

Most engagements follow this shape. The six-month term exists because that’s what it takes to build something that actually works. After that, rolling monthly — and you can walk away with 30 days notice if it’s not working. In practice, it is.

1
Scoping conversation
We talk through what you’re building, where you are, and what a meaningful collaboration looks like. No charge, no commitment.
2
Proposal — specific to you
What we’ll build, over what timeframe, at what investment. Including the Skin in the Game option if it’s the right fit.
3
Build phase — months 1–6
Platform, tools, content, credibility layer. We build. You grow. Phil handles the tech. John handles the clinical backbone.
Priced according to the build — and how much we share the risk

We work across three levels. Every engagement includes the option of our Skin in the Game pricing model — a lower monthly rate in exchange for a small share of your revenue growth. We only make more when you make more.

Foundation — clinical content layer
Growth — platform + tools + content
Partnership — full co-build

All engagements: £5k setup, 6-month initial term, then rolling monthly. Talk to us about whether the fixed or Skin in the Game model is right for you.

What we’re not: We are not a consultancy that takes a fee, gives advice from a safe distance, and bears no consequence if it doesn’t work. Via Negativa: we remove the unnecessary layers — the opaque contracts, the platforms you don’t own, the intermediaries taking a cut of your growth. What remains is yours. And we grow with it.

Ready to subtract

Start a conversation

If you’re building something serious in the T1D space and want operators with skin in the game — we’d like to hear from you.

Get in touch with John

john@theglucoseneverlies.com · No pitch deck required

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