The Official Lumen App Lumen is the world’s first device to measure your metabolism in real time. A pocket-sized nutritionist, the award-winning Lumen app and device provide data in a single breath on your body’s primary source of fuel: carbs or fats. Based on your metabolic measurements and personalized data, receive a daily plan that includes everything you need to create a healthy lifestyle, including personalized meal and snack recommendations, a workout feature, an intermittent fasting option, and additional customized information tailored to meet your fitness and health goals. Lumen works with Apple Health to sync data on your activity and sleep. Features: - Real-time metabolic measurement - Personalized daily meal plans - Lifestyle recommendations for sleep, exercise, fasting, and more - Metabolic data tracking over time - Customizable tracks optimized to meet your goal. More than 11.5K devices have been sold and counting! Featured in the BBC News, TechCrunch, Entrepreneur.com, Wired Magazine, Shape Magazine and more. Winner of the CES 2019 Best Reviews Award Listed in the top 30 Best devices CES 2019 Begin your Lumen journey today!