Lumen is a device and app that measures your metabolism through the breath. With the app, you will receive daily personalized meal plans to help you lose weight and optimize your workouts. You may think you have a fast or slow metabolism, but in fact, it changes every day, based on the food you eat, how much you sleep and if you workout.

~ Sustainably lose weight

~ Optimize your workouts

~ iOS & Android compatible.

How does Lumen measure my metabolism through my breath?

When you breathe into the Lumen device, it measures and analyzes the various gases in your breath (especially Co2) through different sensors in the device.

The concentration of various gases in your breath tells Lumen what your cells are burning for energy - carbs or fats.

Over the last four years, we’ve validated Lumen’s science and technology at top hospitals, universities, and clinics around the world. We’re committed to bringing a device to market that’s accurate, accessible and easy to use.

The concept of measuring metabolism through the breath isn’t new, but it traditionally required hours in a metabolic chamber or cart, and a team of doctors or dietitians to measure the results. It's known as RQ (respiratory quotient) and is the ratio of carbon dioxide (CO2) to Oxygen (O2) consumed. It’s being used in top hospitals and clinics worldwide to help world-class athletes reach peak levels of fitness for years.

Dr. Merav Mor, Lumen co-founder and chief metabolic research officer during validation studies

Our patent-pending technology reduces the time of measuring metabolism from 60-minutes to a single breath.

After conducting multiple studies from 2015 to 2017 with a wide range of participants, Lumen reached equivalent results between the current gold standard measurement and the Lumen device measurement. Two of these studies were conducted at external institutes, San Francisco State University and Tel Aviv Sourasky Medical Center.