Make your nutrition easier to understand with the Lumen Metabolism Tracking Device. Connecting to an app, this clever device takes all the guesswork out of your nutrition. Lumen works by analyzing your breath. With a single breath, Lumen can tell if you’re burning carbs or fat. In addition, the app prompts you to continue your progress. It’ll give you tips such as doing a boot camp workout, adding some extra sleep into your day, and more. Lumen helps you understand not only what to eat but when to eat with a daily meal plan. As a result, it can help you lose weight, get fit, and reach your goals. Incredibly, Lumen can even show you how past food choices can affect you the next day. Superbly compact yet powerful, you can easily use Lumen and the app anywhere you go.