Review Summary

Are you trying to lose weight? Do you just want to know what is going on within your body? 

Metabolism plays a significant role in many different body functions, especially regarding how quickly your body goes through calories. 

Using the Lumen Metabolism Tracker can make a substantial difference in your health goals, giving you a clear idea of what your body is actually doing inside. 

What is Lumen?

Lumen is the world's first handheld and portable device that has been designed to accurately measure metabolism. It gives the common man a real chance to have something that only athletes and medical institutes previously had access to.

Why would you like to use Lumen?

Suppose you are interested in knowing more about your body and want to track your metabolism. Among other uses, Lumen can help you get the right nutrition, optimize workouts, and lose weight.

Lumen will tell you what type of fuel your body is using for energy (Fat, Cards, or both?). The technology Lumen uses is a combination of a CO2 sensor and the flow meter. By determining the concentration of CO2 in your breath, Lumen can measure the type of fuel your body is burning for energy!

Lumen is safe for users over age 16, making it helpful to individuals who frequently participate in athletic activities, are trying to get in shape, or simply want to start adulthood with their health on track. However, the metabolism tracker may not be suitable for you if you have a severe medical condition, including diabetes, asthma, or COPD. 

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How does it work?

In the past, the technology behind a metabolism tracker would previously have been a huge expense that professionals could only purchase for hospital use or research at medical institutes. However, Lumen makes this incredible technology accessible to the general public with a product that can be used with the press of a few buttons.

Lumen connects to your smartphone via the bluetooth and the Lumen app. The app will guide you step by step on taking a measurement.

It is incredibly easy to set up and use, and this technology takes readings that no fitness watch can. 

To get started you will need to charge your Lumen and download the Lumen app from the Apple App store or Google Play store. The App will guide you on how to get started including videos and tips on how to take an accurate breath measurement.

When activated, the device measures and tracks CO2 concentration in the body using RER. RER is the respiratory exchange ratio. It is used as the core data point by Lumen to accurately measure the CO2 levels. CO2 is inherently a byproduct of metabolism, which is why it is an accurate measurement of it. Once you complete the setup and pair your Lumen to your phone, taking your first measurement is simple.

Users will have to inhale fully, hold their breath for 10 seconds, and exhale fully to get a precise reading. The app has voice instructions and visual guides that help you know when to inhale and exhale.

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 Since it is one of its kind, the Lumen device comes with its own set of features, benefits, and pros and cons. Here are a few to begin with:

  • Portable: What is better than anything that comes in handy and is easy to carry around, right? The Lumen metabolism tracker is portable and can be easily carried wherever you go.
  • Affordable: The Lumen metabolism tracker has brought hospital technology to you at a very affordable price. You don't and won't have to pay hundreds of dollars to medical institutions now to have your metabolism tracked. 
  • Real-time accuracy: The Lumen metabolism tracker has been designed specifically to meet your efficiency needs and provides you with real-time accuracy when it comes to results.
  • Metabolic flexibility: The Lumen metabolism tracker not only helps track your metabolism but also helps improve your body's metabolic flexibility.
  • Personalized plans: Lumen uses the information to give personalized plans and enables you to understand your body on a much better and deeper level.
  • Scientific validation: The best part about the Lumen metabolism tracker is that it uses technology backed by science, making the device all the more credible and reliable.

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Price and best place to purchase Lumen

According to the Lumen website, the Lumen metabolism tracker costs $299.

You wouldn't have to wait on a third-party website to buy the Lumen metabolism tracker, and you won't need to browse through an endless list of online retailers for the best price. I only recommend buying your Lumen through the official Lumen website to be sure you are getting the real product and not a "knock-off" from a third party seller.

 What's included in the box?

While you might be convinced about the product by reading its features and benefits, but every person wants to know what they are paying for.

Lumen Unboxing

Here's what comes in every package. 

  • The Lumen device, which is the device used to keep track of your metabolism and would help you gain a deeper insight into your body functions at large.
  • A charging dock for the device, ensuring that it doesn't lose battery power and that it can be charged at a moment's notice.
  • A USB C-cable, which connects to the charging dock to show for incredibly fast charging.
  • A travel case, keeping the tracker and all of the components together whether it is being stored in your end table or taken along wherever you go. 

Some things don't physically reach you but make sure that you have an enhanced experience, like access to the premium customer support offered with a Lumen app's membership. 

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Reviews and Testimonials 

The Lumen metabolism tracker has received both good and bad reviews from the customers. The positive reviews highlight the benefits, like the sleek design, ease of use, and greater understanding of the metabolism. However, some customers are concerned about the accuracy. Customers that are unsatisfied with this product can request a refund if necessary. 

My Experience

Lumen is unlike anything I've seen before and I was super excited to try it out! 
My dog was also curious about Lumen!

I love how Lumen tracks my metabolism daily and takes into account how my sleep, nutrition and physical activity affects my metabolism.

Lumen connects to Apple Health. Based on my health goals that I entered in my Lumen, I get daily personalized meal plans. Plus by taking measurements before and after my workouts i can see. how my workout impacted my body!

Lumen is really incredible and gives me a whole new insight into my body and health! I love it!!
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As this Lumen Metabolism Tracker review, this device is one of its kind! It is handy, handheld, and portable. You can carry it anywhere! More so, if you are looking to get help so that you are mindful of your body and what goes in it, this would be an excellent device to start with. It gives you access to personalized plans and helps you gain a deeper insight into your body and fitness. 

Isn't that amazing? Have you thought about the difference that purchasing the Lumen metabolism tracker could make?

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Price:  $349.00+
Where to Buy: Lumen
Discount Available: none
Source: The sample for this review was provided by Lumen.

*The Fitness Junkie’s primary source of revenue is affiliate links in articles like this one. This means I might receive a small commission on purchases at no cost to you. I was not paid to write this review and I only recommend products I feel are of high quality, worth the investment, and beneficial to my readers, friends & family. Thank you for your continued support!

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