Lumen Metabolic Health Coach
Know exactly what to eat and when with real-time metabolic insights.
Most weight loss plans rely on guesswork—leaving you unsure what your body actually needs. This handheld device measures your breath to reveal whether you're burning fat or carbs, then gives clear daily guidance on what to eat and when.
Use it each morning to understand your metabolism and adjust your habits with confidence. Whether you're trying to lose weight or improve energy, it helps you make smarter decisions that support lasting results.
Highlights
- Real-time insight into fat or carb burn
- Personalized daily nutrition guidance
- Helps improve metabolic flexibility
- Supports natural, sustainable weight loss
- Tracks progress and builds consistency
Product Specs
- Measures CO₂ in breath
- Syncs with major health apps
- Includes mobile companion app
- Rechargeable handheld device
- 1-year warranty included
Shipping
Calculated at checkout
Returns
ORDER, RETURN, REFUND AND WARRANTY POLICY
1. Services Description
The Lumen Services are comprised of the Lumen Device, the Lumen App, and any other Lumen Accessories designed to be used with the Lumen Device. The Lumen Device measures your metabolism by analyzing the composition of your breath and the Lumen App provides you with insights and input with respect to such measurements. Lumen Accessories should be used solely in connection with the Lumen Device. Through the Website, at lumen.me, we offer you the ability to subscribe to the Lumen Services, purchase the Lumen Device and Lumen Accessories at a price presented to you at the time you complete the purchase through the Website or through the Lumen App (as applicable).
We may occasionally change the prices of the Lumen Device and/or the then-current Subscriptions at our sole discretion.
2. Order, Shipment and Delivery
You must be a minimum age of 18 years of age to submit an order for a Subscription to the Lumen Services. In case the order is made for a child under the age of 18 years of age, such order is at their parent's or legal guardian's responsibility. Payment shall be made through the Website in accordance with our terms of use. Delivery of orders will be made to the address that appears on your order within a reasonable time, however, there may be delays due to external factors. Supply is subject to availability at the time of order. The time of delivery can vary depending on the destination. Shipping costs will be added to the purchase price and charged either by Lumen or our third-party shipping services providers, as displayed to you up on ordering. Please note that additional local taxes may be applied to shipments to certain locations depending on your requested location for delivery.
We will not refund or exchange Lumen Devices that were shipped to an inaccurately inputted address. Shipping claims must be made within 45 days from the date of the shipping.
3. One (1) Year Limited Warranty & Safety Policy
The warranty for the Lumen Device and the related safety instructions are provided under the Lumen Warranty & Safety Policy, which forms an integral part of these Terms of Use and is governed by them. To review the full terms, please visit: https://www.lumen.me/warranty
4. Return and Refund
Lumen Devices Purchased on Our Website: Subject to applicable law, you may cancel, return and receive a refund for your purchase of the Lumen Device purchased on our Website only if you did not open the box containing the Lumen Device and, you return it to us within 30 days following the purchase date, as documented by a receipt or other proof of purchase (the “Cancellation Period”). If we did not disclose this limitation on cancellation, returns, and refunds to you during the check-out process, you may return the Lumen Device to us even if you have opened the box, but only during the 30-day Cancellation Period.
For any return of the Lumen Device, you must notify us by e-mail of your desire to return the Lumen Device for a refund at [email protected] within the 30-day Cancellation Period. In order to exercise such right of cancellation, you must (i) notify us of cancellation within the Cancellation Period; (ii) return the Lumen Device to Lumen address (or as otherwise directed by Lumen) at your own cost within 30 days of your written notice of return, and (iii) your item must be returned to Lumen in the same condition that you received it. It must also be in the original packaging, include all materials that came in the packaging and, have the charging dock and cable. Once the above has been completed, Lumen will provide a refund of the applicable Fees you have paid. In any event shipping costs borne by User for products which have already been shipped to User, will not be reimbursed or refunded. You should consider using a trackable shipping service or purchasing shipping insurance to ensure the returned Lumen Device is not lost during delivery to Lumen. We do our best to make returns and exchanges as simple as possible. If you are entitled to a refund in accordance with the above, your refund will be processed, subject to your notification of said return to [email protected] and a credit will be applied to your original payment method by a support representative.
Non-Refundable Accessories: Subject to applicable law, Lumen Accessories purchased on our Website are non-refundable and non-returnable. This includes, but is not limited to, items such as chargers, cases, cables, and any other accessory items
Non-Website Purchases of Lumen Devices and Lumen Accessories: Lumen is not responsible for any Lumen Devices and/or Lumen Accessories that were not purchased directly on our Website. This extends to the performance and functionality of such item. Lumen Devices and/or Lumen Accessories acquired from sources other than our Website are not eligible, among others, for returns, refunds, or warranty services from Lumen as outlined in our Orders, Refund, and Warranty Policy. If you have procured your Lumen Device and/or Lumen Accessories from an alternate source, please refer to that specific source for any assistance or information related to warranty or support inquiries. In such cases, Users are advised to contact the respective source for further guidance. However, Users who purchase a Lumen Device through a different channel other than the Lumen Website may still subscribe to our Services, while adhering to the Terms.
Add-Ons: Membership Add-Ons (e.g., Nutrition Guidance program, extended warranties) are non-refundable.
FAQs
How does the device work?
It measures CO₂ levels in your breath to determine if your body is burning fat or carbs in real time.
How often should I use it?
Most users use it daily to track their metabolism and receive updated nutrition recommendations.
Is it backed by science?
Yes, it’s validated in clinical studies and used by medical professionals to monitor metabolic health.