Lumen is a new product that measures your metabolism in real time. It provides personalized nutrition plans to master your weight loss and performance goals.
Written by the business, not verified by us.Lumen Inc (www.lumen.me) has a 4.2 out of 5 rating on OK.one, based on 175 user reviews collected here. It is listed under Beauty & Well-being and its reputation is good. 79% of reviews are 4 stars or higher and 14% are 1 star; The business has replied to 100% of negative reviews; Reviews mostly discuss Product, User experience, App. Last updated 2026-09-05.
Reviewers overwhelmingly had a great experience with this company. Customers praise the device for making it easy to track metabolism, monitor fat and carb burn, and stay motivated on their wellness journey. Reviewers frequently mention that the app and daily breath measurements provide insightful guidance for improving nutrition and supporting overall health. However, some people mentioned difficulties with the app, noting that barcode scanning for meals can be limited and custom recipes are hard to enter correctly. A few other people also felt that customer support could sometimes be difficult to reach or slow to resolve technical and account issues.
Auto-generated from all reviews of this business. For reference only.Using this app has been very ilLUMENating! Helping me track and understand macros to better regulate my health - great daily assistant, easy to use, and encouraging.
Hi John, Thank you for the ilLUMENating review! We’re so happy to hear that Lumen is helping you better understand macros and helping you stay on track. Keep up the great work :) All the best, The Lumen Team
Have only had lumen for a few days now, but i do love it. It really helps teach me, make me aware of what my body is doing. I have always been a fan of scientific instruments, lol But right now i'm currently fasting and changing my diet, so it's interesting and helpful to use.
Hi Lynn, Thank you for the 5-star review! We're so happy to hear that you are enjoying the insights Lumen is providing you! Wishing you all the best on your Lumen journey :) All the best, The Lumen Team
Lumen did not work for me because I could not exhale long enough to complete a reading. I canceled the subscription 1 month before it was to renew - I was charged anyway. I have a numbered ticket with my cancellation request but I have never received a response in 3 months.
Hi Christy, Thank you for the review! We’re sorry to hear that you had difficulty completing your exhale and experienced issues with your cancellation and billing. This is not the experience we want for our customers. We’d appreciate the opportunity to look into your ticket and help resolve this. Unfortunately, we cannot locate your contact details using the information provided on TrustPilot. We have submitted a request for your information and look forward to speaking with you. All the best, The Lumen Team
My experience with Lumen has been just okay. My order wasn’t processed in a timely manner and was only resolved, albeit promptly, after I notified customer service. I will say that customer service handled my issue promptly and professionally. That said, I actually like Lumen device a lot. Its app software is intuitive and informative. I’m looking forward to better understanding how to change my overall health from it.
Hi Chris, Thank you for the review! We’re sorry that your order experience got off to a rocky start, but we’re glad our customer support team was able to resolve the issue promptly and professionally. We are happy to hear that you’re enjoying your Lumen journey and finding the app intuitive and informative. Wishing you all the best on your Lumen journey :) All the best, The Lumen Team
I highly appreciate my Lumen for the tool it is, as it helps me visualize when I should not consume carbs. The app has educated me on the terms that matter to my weight loss, i.e, mitochondria and glycogen. The education on the Lumen app alone has laid a better foundation for a healthier lifestyle beginning at my plate to effectuate change before going to the gym.Lumen is changing my weight loss and healthy lifestyle journeys one breath at a time!
Hi TeeJaye, Thank you for the awesome review! We’re so happy to hear that Lumen has helped you better understand your metabolism and make more informed choices throughout your health journey. Keep up the great work :) All the best, The Lumen Team
The device itself seems to work okay if your patient and follow the eating. Its simply an expensive tool to collect data. That being said, it is so difficult yo cancel i actually ended up not getting it canceled 2 yrs in a row ($300 each yr). The app cancel membership didnt work. This yeah it still didnt work but I was super persistent with them and FINALLY got it canceled. They block what you can post in the FB group (nothing negative). So, decide is fine, company is absolutely shady and will trap you into a very expensive membership that will be near impossible to cancel.
Hi Megan, Thank you for the review! We’re sorry to hear about the difficulties you experienced with canceling your membership. Memberships can typically be canceled directly through the app, and if you experience any issues with the cancellation process, our support team is always available to help and make sure your request is properly addressed. We are glad to hear that your membership has been successfully canceled now and will share your feedback with the appropriate team as we continue working to improve the process. All the best, The Lumen Team
The app has gotten substantially better since I first purchased and started using the device. I misplaced it for a while and didn’t really miss it since I wasn’t learning much of value. But I found it again & thought “why not?” I really like the changes / updates to the app and tips it provides. It still doesn’t seem to help make clear connections to food consumed. So I may stop using that portion since it’s time consuming without providing much value beyond personal tracking. But perhaps it will be improved in the future
Hi Erica, Thank you for the review! We’re really happy to hear that you’ve noticed the improvements to the Lumen app and are finding the updates and tips helpful. We also really appreciate your feedback regarding food tracking and the connection between food consumed and your insights. We will pass this feedback along to our team as we continue working to improve the experience. Thank you for giving Lumen another try and taking the time to share your thoughts! All the best, The Lumen Team
When I first started using Lumen I lost 20 pounds following its nutrition plan and my metabolism improved tremendously. Then something changed. I remember there was an app update and it changed my nutrition plan to something unmanageable. I think AI was used to make adjustments and it stopped working for me. I stopped enjoying using it. My metabolism score also dropped. Whatever they had in the beginning was perfect. Anyway, I gave it 3 stars because it initially did help me. I sort of stopped trusting the nutritional guidance. I started using Noom and it’s much more realistic and dynamic (real time macro changes).
Hi Tamara, Thank you for sharing your experience! We’re so happy to hear that Lumen initially helped you lose 20 pounds and improve your metabolism. We’re sorry that changes to the nutrition guidance impacted your experience. We truly appreciate this feedback and will share it with our team as we continue working to improve Lumen. All the best, The Lumen Team
It is user friendly and helpful. I no longer use the calorie tracking because it wasn’t reading my meals properly or recognizing my foods. Many barcodes were not found. I wish you could scan a recipe and it would be able to log the food in portions as well. For example I make my own chia seed pudding every morning and protein balls and I can’t scan the recipes for those.
Hi Sarah, Thank you for the awesome review! We’re so happy to hear that you find Lumen user-friendly and helpful. However, we apologize that the food log feature hasn’t been recognizing your foods and barcodes as expected. We really appreciate you sharing this feedback and will be sure to pass it along to our team as we continue working to improve the food logging experience. Thank you again for helping us make Lumen better! All the best, The Lumen Team
It’s an interesting device. I’m still in the beginning stages of figuring out my metabolic flexibility, so I can’t yet tell you if it is effective for losing weight.
Hi Mariela, Thank you for the 5-star review! We're glad you're finding the Lumen device interesting! Understanding your metabolic flexibility is a journey, and we hope the insights you gain along the way help you better understand your metabolism and support you in reaching your goals. Feel free to reach out to our support team via the in app chat if you ever need help! All the best, The Lumen Team
Helps me to understand my body and metabolism
Hi Rafeeque, Thank you for the 5-star review! We're so happy to hear that Lumen is helping you better understand your body and metabolism. Keep up the great work :) All the best, The Lumen Team
Today I engaged with the Metaboli_bot customer support feature. Within seconds I had an answer to my question. In addition I learned that I was not the only one who was concerned and that the product team would be informed. That's AI working for both customer and service provider! Love my Lumen 💕
Hi Chuck, Thank you for the 5-star review! We're so happy to hear that our Metaboli Bot was able to answer your question so quickly. Customer feedback plays an important role in helping us improve Lumen, and we're always working to make the experience even better. We're so glad you're enjoying your Lumen journey :) All the best, The Lumen Team
I’ve been doing intermittent fasting and keto off and on for a while. My assumption was once fat or keto adapted I needed to stay there. I’ve learned recently about metabolic flexibility and the lumen helped me understand why without eating carbs I was 65 or so percent after being 95 before the training. Valuable insight.
Hi Robert, Thank you for the 5-star review! We're so happy to hear that you are enjoying the insights Lumen is providing you. Keep up the great work :) All the best, The Lumen Team
Hi Lawrence, Thank you for the 5-star review! We’re so happy to hear that Lumen is helping you stay on track with your goals. Keep up the great work :) All the best, The Lumen Team
Hi Jumaat, Thank you for the awesome review! We're so happy to hear you had a good experience. If you ever have any questions or need assistance in the future, we're always here for you. Enjoy your Lumen journey! All the best, The Lumen Team
The Lumen is a great product! The App is intuitive. I love being able to see how my choices effect the body and it has helped me make healthier choices with my meals. And you get to breathe deeply a few times a day!!
Hi Kamal, Thank you for the 5-star review! We're so happy to hear that you are enjoying the insights Lumen is providing you. Keep up the great work :) All the best, The Lumen Team
Hi Laura, Thank you for the awesome review! We’re so happy to hear that Lumen is helping you stay on track with your diet. Keep up the great work :) All the best, The Lumen Team
The lumen is easy to use. I haven't got to the stage where I can get more information about my metabolism as it's still collating the breathes for another4 more days. But it does take the stress out of eating as I have been putting on weight since menapause and no amount of weight training or exercise has seemed to have a lasting impact. I look forward to finding out more about my metabolism
Hi Marian, Thank you for the awesome review! We're so happy to hear that Lumen has been easy to use and that it has already helped take some of the stress out of your nutrition choices. We appreciate you being part of the Lumen community and look forward to supporting you on your journey! All the best, The Lumen Team
I hadn’t used my Lumen in years, and the app wasn’t allowing me to use the device. I contacted their customer support after hours, and was promptly described how to resolve the issue, and I was up and running again in minutes. Fantastic customer service and an incredibly helpful product. Extremely happy with this company!
Hi Brian, Thank you for the 5-star review! We're so happy to hear that our support team was able to get you back up and running quickly. We appreciate your kind words and are so happy to have you part of the Lumen community! All the best, The Lumen Team
Great device. Easy to use.
Hi Danielle, Thank you for the great review! We’re so happy to hear that Lumen is easy to use. Wishing you all the best on your Lumen journey :) All the best, The Lumen Team
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