Lumen Metabolism Tracker

World-class athletes have been using the ratio of carbon dioxide (CO2) to Oxygen (O2) consumed to help modify their diets for years, but it's previously required costly equipment and usually means a trip to a medical center. The Lumen Metabolism Tracker uses patented technology to let you take advantage of the same technology wherever you are, using a single breath. By measuring that ratio, it's able to tell whether your body is currently burning fat or carbs, adjust your diet accordingly, tell you if you'll have enough energy for your next workout, and give you insights into how the food you consume affects your body. It only needs placed on the included charging dock once every couple weeks and includes a travel case to protect its soft-touch plastic and stainless steel form.

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