Lumen

Company profile

About Lumen

Lumen is the world's first scientifically validated handheld device that accurately measures metabolism at the mitochondrial level through a single breath. Founded by twin sisters and PhDs in physiology, Drs. Merav and Michal Mor, both Ironman winners, Lumen makes metabolic testing accessible to everyone—technology once available only to elite athletes, hospitals, and clinics. The device works by analyzing CO₂ concentration in exhaled breath to determine the body's Respiratory Exchange Ratio (RER), revealing whether the user is primarily burning fat or carbohydrates for fuel. This real-time metabolic data integrates with sleep, meals, and workout information to provide personalized nutrition guidance, meal timing recommendations, and actionable insights for improving metabolic flexibility. Lumen serves individuals seeking weight loss, metabolic health optimization, fitness performance enhancement, and longevity. The platform is particularly valuable for those managing hormonal shifts, preserving muscle mass, optimizing workout fueling and recovery, and tracking metabolic flexibility—a key marker of healthy aging. The technology has been validated through multiple peer-reviewed studies with institutions including San Francisco State University, and is HSA/FSA eligible. Lumen's mission is to create a world where every person has access to personalized nutrition through cutting-edge technology.

Company description · Lumen official website

Mission. Lumen's mission is to create a world where every person has access to personalized nutrition and is empowered to improve their health through the world's most cutting edge technology in the field.