Lumen
The pocket device that measures your metabolism in a single breath.
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Lumen is the world's first handheld device that measures and tracks your metabolism in real time — simply breathe into it to see whether your body is burning fats or carbs.
Paired with its app, Lumen turns that insight into personalised daily nutrition guidance, helping you understand and improve your metabolic health.
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| Payment Methods | Contact retailer |
Last updated: June 2026
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