Lumen Metabolism Tracker Device – Measure Real-Time Fat & Carb Burn, Daily Nutrition, Meal Plans, Metabolic Health, Weight Loss, Athletic Fitness & Performance for Men & Women w/Month Subscription
$149.99
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KNOW IF YOU’RE BURNING FAT OR CARBS—IN SECONDS: Track your metabolism in real-time with a single breath using the Lumen Metabolism Tracker Device. Instantly see how your body responds to food, sleep, and workouts—and use that feedback to lose weight, boost energy, and become metabolically flexible. No more guessing—just daily, personalized data for smarter health decisions.
BUILT AROUND YOU, DESIGNED FOR RESULTS: Lumen is for anyone stuck in a weight loss rut, feeling drained, or just wanting to understand their body better. Whether you’re juggling work, hormones, or training goals, Lumen’s data helps you personalize your macros, improve performance, and support fat burn, so you’re synced to your body’s rhythms and can achieve your goals in a way that fits real life.
CLINICALLY VALIDATED & EXPERT BACKED: Lumen is grounded in science and validated in peer-reviewed studies. Used in health clinics, gyms, and trusted by professionals to help people improve metabolic health through real-time breath analysis and personalized lifestyle guidance. With one app, monitor progress, optimize results, and unlock the data your body’s been trying to tell you all along.
SMART TOOLS TO TRACK WHAT REALLY MATTERS: Use personalized nutrition plans, AI-powered meal suggestions, and a fasting tracker to pinpoint your fasting sweet spot and avoid muscle breakdown. Turn carbs into fuel to reach peak fat burn and learn how to eat in sync with your hormones. With 50+ integrations across your favorite apps, track progress and personalize your journey with deeper insights.
WHAT’S IN THE BOX: Lumen device, USB-C charging dock and cable, travel case, and access to the Lumen app. Your 12-month subscription unlocks all premium features, personalized coaching, and access to our exclusive in-app community for real-time support and lasting results. Battery life up to 10 days. iOS and Android compatible. One-year limited warranty. Smartphone not included.
Amazon Customer –
Helps you keep track
Ive waited till a month before I would give my full review of Lumen and whether or not it helped me. As someone who is going through perimenopause and is starting to see weight gain despite having a very active and fairly healthy lifestyle, I was struggling to see what I needed to change. Testing out Lumen the first week I was struggling to see any fat burning numbers and would continue to experiment with timing my meals, what to eat specifically during the day and night. I started seeing some results and continued playing around my daily lifestyle to see what was the cause of it. I did notice when I was highly stressed it also affected my numbers a lot and tried to focus on lowering my stress/cortisol levels(which can be hard to do). I also experimented the times of when I worked out to play around if that affected anything. I’ve been getting better with my numbers each week stating that I’m in fat burning mode. Trying to also test my carb loading days. What I find fun is experimenting and seeing what the results you’ll get and being consistent. Again, as someone who’s currently in their perimenopause stage it’s good to have Lumen as a progressive track on observing what’s affecting your body from potentially burning fat. It’s a good tool to have instead of just guessing especially when the app has people to help you and a community you can also chat and share your thoughts and struggles.
MULAN_2003 –
Hassle free acquisition of Lumen Metabolism trainer
Buying products through Amazon is the simplest way to acquire. Lumen even if you do the minimum of taking a wake up breath and one before sleep, you will improve your dietary intake and learn how to change and inprove yoyr metabolism. The more you put into it the more you get out of it. You have mire accessory options if you order directly through Lumen but if you want just the basics and immediate shipping, Amazon is the way to go.
CA –
Game changer for understanding my metabolism
I’ve been using Lumen and I’m blown away by how much I’ve learned about my body. The daily breath check takes less than a minute and gives instant feedback on whether I’m burning carbs or fat. It’s helped me understand how my meals, sleep, and workouts affect my metabolism in real time.The app gives clear meal guidance and weekly insights that make it easy to adjust my routine. I’ve noticed better energy levels and less afternoon fatigue because I finally know what my body needs.It’s not another fad gadget. It’s a real tool that keeps me accountable and teaches me how to fuel smarter. Worth every penny.
john a. armstrong –
Inaccurate results & poor customer service
The results are inaccurate and inconsistent with more reliable RMR testing. I have been trying to cancel my membership but I keep getting stonewalled and prohibited by lumen to cancel.
Tom Delleree –
Great weight loss plan
Still learning how to navigate. Difficulty being able to enter in/ add food intake.
Sam –
Expensive
Don’t think the technology is there yet to be accurate enough to trust
Tamar Brestovisky –
cracking the code on my metabolism
I was skeptical, given the price and subscription, but Lumen genuinely works as a personalized guide. It’s not a magic weight-loss bullet—you still have to put in the effort—but the data is incredible. Seeing in real-time if I’m burning fats or carbs, especially in the morning, has completely changed how I time my meals and workouts. My energy is way more consistent, and I’m slowly but surely improving my metabolic flexibility. The breathing technique takes a little getting used to, but it quickly becomes a simple, vital part of my morning routine. Highly recommended if you’re serious about biohacking your nutrition.
Lauren M –
Great device for health data junkies
You’ll enjoy using this if you’re someone who’s obsessed with collecting health data like steps, activity, food tracking etc. It integrates with your Apple Health metrics and whatever wearable you use. Also pulls data from your food logging to get real time nutrition updates.You breathe into the device when you wake up, after each meal, and before you sleep. (Sometimes I only do wake time and bed time when I’m busy but you can set notifications as reminders). It tells you what % of carbs and fats you’re burning. You’ll expect to be burning more carbs right after a meal especially if it was higher in carbs but you should ideally see a trend towards more fat burn after you’ve been fasting for some time to indicate metabolic flexibility. After 10 days of collecting breath data it can give you a personalized nutrition plan tailored to your goals.Learning how to breathe into the device is difficult at first but there’s a beginner tutorial and a helpful ring visual on the screen to help you get the right duration and intensity of your inhale/exhale.Also super impressed with the battery life, have not had to charge it for over a week!