Lumen
Metabolic insights from your breath.
Lumen analyzes CO₂ in your breath to show whether you’re burning carbs or fat — and gives daily nutrition guidance to match.
"Since I got this device, I started to follow its recommendations and I am down 30 pounds of my 45-pound goal. Thanks to this simple device, now I do understand my body and how to control it when eating!"
LumenMetabolism Tracker