Lumen Introduces at Home Metabolism Tracking Device, Available Worldwide Now

Lumen metabolism tracker
Image: PRNewswire

Lumen, a New York-based health technology company, announced the global launch of its ground-breaking wellness device called Lumen. Developed through years of scientific testing and validation, Lumen is the first handheld, portable device and app that measures your metabolism in real-time with just your breath. Lumen is making personal, at home metabolic tracking available outside of research labs for the first time – revolutionizing the way we approach weight loss, fitness and healthy nutrition decision making.

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Lumen works by measuring your body’s carbon dioxide concentration by breathing into a handheld Lumen device. These levels, calculated through Lumen’s vast scientific research and development, indicate the type of fuel your body is using to produce energy – a mix of fat or carbs. Like having a nutritionist in your pocket, Lumen provides you with personalized suggestions on when and what to eat to fuel your workout, based on your metabolism. Lumen supports fat burn and improves your metabolic flexibility, which is your body’s ability to efficiently switch between using carbs and fats as a fuel source, says a press release.

Research has found that people with good metabolic flexibility can gain muscle and lose weight easily during workouts, and have a lower risk of developing obesity, diabetes and metabolic disorders.

Michal and Merav Mor, twin sisters with PhDs in Physiology, co-founded Lumen and act as Head of Science for Product and Head of Research and Science respectively.

“While metabolism is key to weight loss, the only way to test metabolism was through a restrictive, hours-long laboratory process, leaving regular people with zero visibility into their metabolic rate and only haphazard ways of improving it,” said Michal Mor, co-founder and Head of Science for Product, Lumen.

A woman blowing into a wearable device
Image: Lumen

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The Lumen device and app enable users to maximize their wellness:

  • Like having a nutritionist in your pocket – Know what and when to eat to fuel your workout, improve your metabolic flexibility and support fat burn.
  • Track your metabolism daily – See how your metabolism is affected by your sleep, physical activity, and nutrition.
  • Customize your nutrition – Get daily personalized meal plans. Know exactly what to eat and when.
  • Workout optimization – See if you have enough energy before a workout or if you need to fuel up. Breathe afterward to see the impact on your body.
  • Monitor and improve your metabolic health – Over time, Lumen tracks your metabolism, sleep, nutrition, and fitness data to provide a Lumen Flex Score, which reflects your success and helps sustain results.
  • At home, not a lab – What takes nearly an hour in a lab using expensive and heavy machinery can now be done at home or on the go

Scientific Validation

Lumen can provide numerous insights about the metabolism of an individual, as well as valuable scientific data to increase knowledge of metabolic flexibility and nutrition. In a study conducted by San Francisco State University, Lumen has been validated to meet the gold standard for metabolic measurement.

Price and Availability

The Lumen device is available at, currently priced at $299 with an MSRP of $349. The device comes equipped with a travel case, charging dock, USB-C Cable, and Premium Customer Support. Users can download the app for free on the Apple App Store and on Google Play.

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Cathy Russey
Cathy Russey () is Online Editor at WT | Wearable Technologies and specialized in writing about the latest medical wearables and enabling technologies on the market. Cathy can be contacted at info(at)