The Function Health Test in the UK: What Are Your Options?

What is the Function Health test?

Function Health has popularised comprehensive biomarker testing in the US. If you're in the UK or Europe, you may be wondering: is it available here, and what's the closest alternative?

This article explains:

Function Health: what it is and what it tests

Function Health is a US-based preventative health platform known for offering a broad blood biomarker panel and a dashboard for tracking results over time. The core idea is simple: instead of waiting for symptoms, you proactively measure internal health signals and act earlier.

Typical biomarker areas include cardiovascular health, metabolic function, hormones, liver and kidney function, nutritional biomarkers, and inflammation markers.

Is Function Health available in the UK?

The practical reason is that laboratory testing, clinical oversight, and regulated health services operate differently across countries. What's available in one market often can't be offered internationally without local infrastructure and compliance.

The Ezra service is a different kind of test. A full-body MRI scan takes images of your organs and tissues to look for structural changes. It doesn't measure blood biomarkers such as cholesterol, HbA1c or vitamin D. At the time of writing, Function's UK site lists MRI scans from £1,299 (£1,999 with the spine included) and a lung CT scan at £399.

Function Health in Europe

It's the same situation in Europe: Function Health's blood-testing membership isn't available there either, so for blood testing you'll need a provider in your own country. Stride's DNA & Methylation Test can be ordered in Europe, but Optimal Bloods, Optimal Biome and StrideOne are currently UK-only.

Why preventative health testing is growing so fast

People are increasingly comfortable tracking health data: steps, sleep, and training load are now normal. The next step is internal biology: blood markers, gut health, genetics, and more.

What to look for in a Function Health alternative

If you're choosing a UK or EU alternative, the number of markers matters less than whether the platform helps you move from results to action and repeat over time.

1) Comprehensive testing (not just blood)

Blood biomarkers are powerful. But they're one layer. Many modern preventative platforms include additional testing such as genetics and microbiome analysis to create a more complete picture.

2) Actionable recommendations

Data without direction is noise. The best systems translate results into clear next steps: nutrition, lifestyle, and interventions that are easy to implement.

3) Longitudinal tracking

The real value comes from repeated measurement: you learn what's changing, what's working, and what needs adjustment.

4) Human support

Even the best dashboards can't replace a qualified conversation when something is unclear or when you need accountability to follow through.

Stride: a preventative health membership available in the UK

Stride is designed as a full-stack preventative health membership, bringing together advanced testing, telehealth support, and tailored interventions under one roof.

That membership is StrideOne. It combines DNA, gut microbiome and blood testing (500+ biomarkers), and your blood and gut tests are repeated every six months, so you can see what's changing. You also get quarterly 1:1 video consultations with a Stride expert, a Stride BioAge score (your biological age, calculated from your blood biomarkers and tracked over time) and the MyStride dashboard, which keeps every result in one place.

Why multi-omic testing matters

Blood-only testing can be informative, but health is influenced by multiple systems at once. A multi-omic approach combines layers like genetics, gut health, and blood markers to create more context and clearer action.

The future of personalised health

Preventative health is moving toward longitudinal, consent-based data collection, combined with better interpretation and smarter personalisation.

The platforms that win will be the ones that turn results into repeatable systems that help people improve month after month.

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