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.
Peer-reviewed research evaluating Lumen validated that it matches the gold standard of measuring metabolism.
Lumen is calibrated to your unique CO2 range and lung capacity.
Each morning, Lumen determines the source of your body’s fuel — carbs or fats.
Lumen provides personalized nutrition recommendations and daily guidance on sleep, diet, exercise and more.