Lumen AI
NewAI metabolism tracking device and app that measures metabolic rate to optimize nutrition and fat burning.
About Lumen AI
Lumen is a handheld metabolic tracker that measures carbon dioxide concentration in a single breath to determine whether the body is burning primarily carbohydrates or fat for energy—providing daily metabolic flexibility insights that were previously only available in clinical metabolic testing. Its AI analyzes breath measurements, sleep data, activity levels, and nutrition logs to generate daily personalized nutrition recommendations optimized for metabolic health, fat loss, or performance goals. Lumen's AI learns each user's metabolic patterns over time, providing increasingly personalized guidance for nutrition timing, carbohydrate intake, and lifestyle choices that improve metabolic flexibility.
Pros
- Objective metabolic data enables evidence-based nutrition decisions
- AI personalizes daily nutrition recommendations based on actual metabolic state
- Tracks metabolic flexibility improvement over time for measurable health progress
Cons
- High upfront device cost plus ongoing subscription makes it a significant investment
- Breath measurement technique requires learning and consistency for accurate readings
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