Your metabolic health,
in your hands
1-Year
Warranty
Metabolic
Expert Support
Your metabolic health,
in your hands
Track your metabolism in real time and build better routines around food, movement, and recovery.
Break free from your scale.
Know what to eat and when
for your best body, without the
stress.
Get some rest (finally).
Get high-quality sleep so you can wake up with lasting energy and focus.
Train smarter, not harder.
Reach new heights in the gym by optimizing fueling and recovery.
Feel better in your body.
Build smarter habits, gain confidence, and reclaim your
vitality.
Navigate menopause with
confidence. Manage the impact
of hormonal shifts on your metabolism.
Members get daily personalized guidance and insights for reaching their health goals
Real-time insights into your body’s energy source. Know if your body is burning fats or carbs and get daily guidance on how to reach your health goals.
See how your lifestyle habits impact you today. Learn what works for your body with nutrition, exercise, sleep and stress and make better choices.
Know what to eat and when.
Lumen learns your body and gives you a daily personalized plan to know what to eat.
Make on-the-spot decisions.
Measure before your workouts to see whether you have enough fuel and after to see the impact.
Learn more on your journey.
Find science-backed coaching videos with actionable tips to help you understand more about metabolic health.
Reveal your metabolism's efficiency. Lumen measures your metabolic health and provides you with a score to reflect it.
Connect to your favorite health & workout apps. Frictionless integrations with Apple Health, Google Fit, and Garmin.
Sync your nutrition to your monthly cycle. Find personalized recommendations for each day of your phase suited for your physiology.
"I've lost over 18lbs with Lumen and it's keeps my consumption in check. I'm no longer aimlessly working out, nearly starving, or eating bland food in hopes of losing weight.
Lumen guides me in the right direction and with it, I have surpassed my weight loss goals. I've never been more healthy, fit, and proud. Lumen is a game-changer."
"I had lost all hope to lose weight; had tried many different diets and nothing worked until I became a Lumen user. I am losing weight YAY!
And not tied to a diet that requires specific ingredients and most of the time expensive stuff. With Lumen I eat what I like and when I want it; I try to follow their macro recommendations; it is great not to feel restricted, Lumen gave me hope."
“It’s great for understanding how your metabolism reacts to all kinds of stimuli like diet, exercise, stress, alcohol, or just overeating.
It helped me understand how important it is not to eat past 7 PM so your body can digest your last meal and switch to burning fat during sleep. Really helped me to stop snacking at night.”
"The Lumen is an easy habit to get into if you want to know and improve your metabolism
It provides feedback to help get on right track for when and what to eat, tracking metabolism, fasting and macros. It incorporates a food and exercise log and adjusts your macros based on exercise."
"The specialized system is beyond amazing. I see results and the education aspect has helped me understand MY habits.
I would definitely recommend everyone that has struggled to break the habit of the so called latest and greatest weigh loss trend to get a Lumen. Lumen is a personalized device that measures YOU and is not some general guide for everyone"
"Lumen has been a key player in helping me take my health to the next level. I love the insight it gives me in real time so I never ever guess if I'm making the right decisions with my meal timings, portions, macro split, workout timings or intensity, etc.
I've been able to decrease my coffee intake significantly (by the cup stregth and by the week!), increase my lean muscle definition, build and maintain lean muscle mass, reduce body fat, improve my skin, and so much more!"
Trusted by doctors and
Professional nutritionists
Before Lumen, assessing your metabolic health required a lengthy procedure using a metabolic cart, costing hundreds of dollars
...for a single, detailed professional-grade metabolic measurement.
Lumen's handheld device meets the gold standard. Unlimited measurements can be taken anytime and anywhere.
...With each breath measurement, Lumen’s advanced algorithm builds a personalized diet plan and lifestyle recommendations based on your real-time results.
Before Lumen, understanding your metabolic health meant spending 40 minutes and paying hundreds of dollars for a single detailed, professional-grade metabolic measurement.
Lumen's handheld device meets the gold standard. Unlimited measurements can be taken anytime and anywhere.
With each breath measurement, Lumen’s advanced algorithm builds a personalized diet plan and lifestyle recommendations based on your real-time results.
Choose a plan. Save big on annual bundles
Or go with a basic bundle
The Lumen device and app membership come bundled together to give you a full-spectrum view of your health.
Choose from four flexible membership plans to support your goals and fit your budget. Each bundle includes:
Accessories. Stay on track, anywhere
Includes an extra charger, case, and cap to keep you on track, no matter where the day takes you.
Includes an extra charger, case, and cap to keep you on track, no matter where the day takes you.
Keep an extra charger at work for easy measurements on the go.
Keep an extra charger at work for easy measurements on the go.
Keep your Lumen safe while on the go.
Keep your Lumen safe while on the go.
Protect your device with a magnetic cap.
Protect your device with a magnetic cap.
Add-ons. Make your journey a meaningful one
Access expertise, motivation, and personalized guidance, right when you need it. Get instant access to specialist nutrition support, daily macro adjustments tailored to your lifestyle, and holistic coaching that keeps you informed, accountable, and empowered every step of the way.
Lumen’s unique technology has been validated to match the gold standard for metabolic measurement, giving you access to lab-level insights from your home.
The advanced lithium-ion polymer battery provides rapid charging, and lasts for ~10 days of use.
Compact, but powerful. Lumen fits in your hand, pocket, or handbag - ensuring effortless measurements anytime, anywhere.
Form meets function with Lumen’s minimalist aesthetic and ergonomic design, made with high-quality materials to a top-tier standard.
Know if your body is burning fats or carbs and get daily guidance on how to reach your health goals.
Receive a personalized nutrition plan each morning based on your unique metabolic data. Your macros and meal suggestions adapt daily depending on whether you're burning fat or carbs
Get AI-powered meal suggestions that align with your daily macros. Easily log meals via photo or voice for real-time feedback and accountability.
Understand how your food, sleep, workouts, and stress impact your metabolism. Get lifestyle tips and insights that help you make smarter daily decisions.
Access expert guidance and community support to reach your goals. Lumen provides science-backed coaching and educational tools to help you stay on track.
* certain app features require an active membership
The Lumen device uses a CO2 sensor and flow meter to determine the carbon dioxide concentration in your breath, which indicates whether your body is burning fat or carbs. This measurement builds a daily nutritional plan.
4.02in X 1.63in X 1.31in
0.21 pounds / 95g / 3.35 oz
The advanced Poly Ion battery provides rapid charging and assures ongoing usage, even in long business or fun trips, without the need to charge the device more than once every 2 weeks.
I lost 4lb the first week and 2lb the second...but more importantly, I was no longer sleeping badly or tempted to have a nap at 4pm.
You could hire an expensive coach or you could hack your health with Lumen.
Breathe into it and the Lumen will tell you how well you're burning fat, and how to eat healthier.
This Smart Gadget Helps You Hack Your Metabolism And Lose Weight.
What once took over an hour to measure, and a team of nutritionists and scientists to analyze, can now be done in less than three minutes.
I lost 50lbs in seven months by changing one thing about my routine - Lumen
As a nurse and a woman who has struggled with weight loss…trying Lumen was eye-opening and validating.
To get a metabolic reading in the past, you had to go to a lab. Now you can keep it in your purse or gym bag.
Cleverly, all you have to do is breathe into the handheld device (which is small enough to fit in even the smallest handbags).
Yes, the Lumen device is the only way to measure your metabolism in real-time to receive personalized insights and guidance in the Lumen app.
Yes, you can cancel your membership at any time you wish.
The membership cancellation will come into effect on the next billing cycle.
Your membership will start when you activate your account after receiving your Lumen device, or 10 days after your purchase, whichever is earlier.
Yes, for Lumen devices purchased starting July 30th, 2023, after the cancellation comes into effect you’ll still be able to take unlimited metabolic measurements. However, you won’t have access to the Lumen membership experience, including personalized insights and guidance.
We created Lumen to help people above the age of 16, improve their metabolic flexibility so they can enjoy better workouts, improved sleep, easier weight loss, and happier, longer lives. However, there are certain conditions and diseases which can impact the Lumen results and therefore we do not recommend Lumen for people with the following:
Additionally, Lumen's nutritional recommendations may not be suited for people with:
For other medical problems, please check with your doctor first.
Lumen is under warranty for one year from the date the device is delivered to you. If your device or charging dock develop a fault caused by manufacturing defects during that period, we'll fix or replace them free of charge. Accidental damage is not covered. Read our full warranty policy.
Your Lumen can be returned for a full refund within 30 days of receiving it, if it is unopened. We want you to be completely satisfied with your Lumen. So please reach out to Customer Support if you’re having problems. Read our full refund policy.