Israeli metabolism-hacking device is a star at Consumer Electronics Show this year [Video]

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Lumen uses a CO2 sensor and flow meter to indicate the type of fuel your body is using to produce energy.Lumen uses a CO2 sensor and flow meter to indicate the type of fuel your body is using to produce energy.Lumen uses a CO2 sensor and flow meter to indicate the type of fuel your body is using to produce energy. (Photo: Cid Carver/Lumen)

The annual innovation expo will feature Lumen, a breathalyzer that can tell you if your body is using fats or carbs for energy.

As the biggest …