Lumen is a device and app that helps you take control of your metabolism. We help people achieve metabolic health by making better nutrition and lifestyle choices so they can enjoy a higher quality of life and live longer.

Through your breath, Lumen measures your fuel source in real time, telling you if you’re using fats or carbs for energy, and providing you with a personalized nutrition plan to help you reach your health and fitness goals.

Lumen began with twin sisters Merav and Michal – two mothers, Ironman winners, and PhDs in physiology. As scientists and athletes, they were passionate about developing a way to provide personalized nutrition that was backed by science, but knew the only way to measure metabolism was costly and time consuming.

Today, over 2 million measurements a month are made on the Lumen platform in a single breath.