The technology used in labs, now at your fingertips.

Unlock your metabolism

The CO2 concentration is measured using a unique breath maneuver, which is performed by inhaling a fixed volume of air through the Lumen device (dynamic to each individual), holding it for 10 seconds, and exhaling fully.

How it works - Metabolism

How do you measure metabolism?

Before Lumen

Before Lumen

The only way to measure your metabolism was in a hospital or clinic with a costly and time-consuming test known as RER (through the breath).
With Lumen

With Lumen

Lumen uses RER as the core data point to bring the same measurement to a home environment by measuring the CO2 in your breath through the sensor and flow meter, based on the RER metric.

Metabolic flexibility

With Lumen's daily insights, you will improve your metabolism by improving metabolic flexibility: your body's ability to shift efficiently between using fats or carbs as a source of energy.
Metaboilic Flexibility chart
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Scientifically validated & Peer-reviewed

Peer-reviewed research evaluating Lumen validated that it matches the gold standard of measuring metabolism.

Lumen App demo

Getting to know you

Lumen is calibrated to your unique CO2 range and lung capacity.

Lumen App demo  part two

Taking a breath

Each morning, Lumen determines the source of your body’s fuel — carbs or fats.

Lumen App demo  part three

Receiving your plan

Lumen provides personalized nutrition recommendations and daily guidance on sleep, diet, exercise and more.

Start hacking your metabolism