Curious about how to measure metabolic health and actually act on the results? Lumen makes it simple.
Ever wonder how to measure metabolic health in real time and actually make sense of it? You’re in the right place!
In this guide, we’ll walk you through everything you need to know about measuring metabolic health with Lumen, the breath-based metabolism tracker, so you can see instant results and take action that’ll move things in the right direction.
And if you’re already thinking of grabbing one, you can save 10% on your Lumen device when you use our Lumen discount code gymfluencers at the online checkout.
What metabolic health is and why it matters
Metabolic health is basically how well your body converts food into fuel and keeps everything like blood sugar, cholesterol, and blood pressure balanced.
When all those markers are in a good place, you’ve got energy, you recover faster, and you’re more resilient against long-term health problems.
Learning how to measure metabolic health isn’t just something for pro athletes or fitness obsessives. It’s useful for anyone who wants to feel better day to day, manage their weight more easily, and build habits that actually last.
Traditionally, doctors would rely on lab tests to measure metabolic health, but those only give you occasional snapshots so it’s hard to know if they’re a true reflection of how your body is working.
What you really want is to see how your metabolism is working on a day to day basis, and this is where Lumen really shines.
Introducing Lumen
Lumen is a small handheld device that looks a bit like a breathalyser, but instead of testing for alcohol it measures CO₂ levels in your breath.
From that, it can tell whether your body is burning carbs or fat for fuel.
In other words, it gives you real-time insight into how to measure metabolic health without blood tests, waiting rooms, or complicated equipment.
The best part is that it doesn’t just give you the data. Through the app, Lumen explains what those readings mean and how you can adjust your food, workouts, or routines to get the results you want.
All of which makes it one of the most practical tools for actually understanding how to measure metabolic health in daily life.

How to measure metabolic health using Lumen
Getting started with Lumen couldn’t be easier.
Once you’ve paired the device with the app, you’ll begin with a morning reading before eating or exercising. You simply breathe in, hold, and exhale into the device, and within seconds you’ll see whether you’re burning carbs or fat.
That reading becomes your starting point and sets the tone for your day.
The real magic happens when you track at different points throughout the day. After a meal, for example, you’ll see exactly how your body responds to the food you’ve eaten.
Around workouts, you can measure before and after to watch your metabolism shift as you train and recover.
If you’re into intermittent fasting or fasted training, it’s also a great way to compare how your body behaves in a fasted state versus a fed one.
All of this makes learning how to measure metabolic health more hands-on than ever before, because you’re seeing real feedback on real choices.
Over time, the app builds a complete picture of your metabolic health. See, your daily readings add up to a flexibility score, which shows how easily your body can switch between carbs and fats as fuel.
That long-term view is just as important as the instant results because it helps you see progress and understand how your metabolism adapts.
In short, it makes the process of how to measure metabolic health both simple and sustainable.
Why it works
The reason Lumen feels like such a breakthrough is because it takes something complicated and makes it accessible. Instead of waiting weeks for bloodwork, you get instant feedback. Instead of vague nutrition advice, you get personalised recommendations. You start to connect the dots between what you eat, how you train, and how your body responds.
That’s motivating in itself, but it’s also empowering because you’re not just being told what to do. You’re learning how to measure metabolic health in a way that’s tailored to your lifestyle.
It’s personal, practical, and it can genuinely change the way you approach your health goals.
Tips to get the best results
To really get the most out of Lumen, consistency is key.
Take your first measurement every morning before you eat so you have a reliable baseline.
Test after different types of meals to learn how carbs, protein, and fats affect you individually.
If you work out, measure before and after sessions to see how your body switches fuel sources with activity.
All of these little data points build up into a much bigger picture of how to measure metabolic health, giving you the kind of clarity that makes healthy decisions so much easier.
Final thoughts
So there you have it, a complete guide on how to measure metabolic health with Lumen and why it’s such a game-changer.
Measuring metabolic health doesn’t have to be complicated, slow, or reserved for medical labs. With Lumen, it’s as simple as a single breath and an app that translates the science into steps you can use right away.
If you’ve been curious about how to measure metabolic health in real time and want a tool that actually helps you take control, Lumen is the answer.
And don’t forget, you can use our Lumen discount code gymfluencers for 10% off at the online checkout.
SEE ALSO: Lumen metabolism tracker guide: how to optimize your metabolic health in simple steps