65 million breaths and counting
Join the movement toward better metabolic health.
65 million breaths and counting
Join the movement toward better metabolic health.
Join 300K+ Lumeners
changing their lives
Real people
real results
Lumen drives long-term, sustainable habit change that helps you reach your weight and health goals. Discover how good your body is designed to feel with Lumen.
lost in just 6 months*
in metabolic flexibility score*
on average in just 12 weeks**
How it works
Get tailored guidance to improve your nutrition, exercise, sleep, and stress levels for a healthier you.
Take your
first step
Uncover the hidden connections between your lifestyle and your health goals with our free personalized metabolic health guide, and get $20 off your Lumen!
What's your primary
health goal right now?
Innovative research,
groundbreaking applications
Lumen collaborates with top institutions worldwide to conduct game-changing research about metabolism.
Lumen is the top choice for doctors and clinics putting metabolic health first
Innovative, individualized, and data-driven solutions that empower both practitioners and patients to improve metabolic health.
When your mitochondria use carbs as fuel, they release more CO₂ into your blood, and when they burn fat, they release less CO₂. Lumen analyzes the CO₂% in your breath and determines if you are using mostly fat or carbs for fuel based on the CO₂ concentration.
* As reported in 2024 Lumen user data analysis