Lumen Reviews 2023: A Comprehensive Analysis of Metabolism Tracker

Updated on September 26, 2023

Imagine being able to unlock the secrets of your metabolism and optimize your health with a single device. That’s the promise of Lumen, a handheld metabolism tracker that offers personalized nutrition plans and insights into your metabolic flexibility. In this blog post, we’ll dive deep into the world of Lumen and explore its features, functionality, and real-life performance through various Lumen reviews to help you decide if it’s the right choice for your health journey.

Key Takeaways

  • Introducing Lumen Metabolism Tracker, a handheld device that measures metabolism and provides personalized nutrition advice.
  • Our review is comprehensive and trustworthy, evaluating its effectiveness in fat burning mode & metabolic flexibility.
  • Consider the cost of subscription & potential benefits weighed against effort required to see results before committing to Lumen.

Introducing the Lumen Metabolism Tracker

A person holding a Lumen device, a handheld device that measures metabolic health

Lumen is a groundbreaking handheld device designed to measure your metabolism by analyzing carbon dioxide (CO2) levels in your breath. This innovative approach is based on the respiratory exchange ratio, which reveals whether your body is primarily burning fat or carbohydrates for energy. By understanding your metabolic health, you can make informed decisions about your diet and exercise routine to achieve better weight loss results and improve your overall health.

The goal of Lumen is not only to help you lose weight but also to enhance your metabolic flexibility, which is the body’s ability to adapt to various metabolic demands and efficiently metabolize sugar. To achieve this, Lumen provides a personalized nutrition plan that focuses on metabolic flexibility rather than restrictive diets like low carb or keto. This plan includes days of low, medium, and high carbohydrate intake, helping you reach a fat-burning state and achieve a higher Lumen flex score.

Developed through rigorous scientific research and collaboration with experts from San Francisco State University, Lumen has become the gold standard in metabolic measurement. Its accompanying app offers valuable insights, recipe suggestions, and personalized nutrition advice based on your morning measurements. With Lumen, you can finally hack your metabolism for better health and weight loss results.

Trusting Our Review

A person looking at a Lumen review, a review of the Lumen device

We recognize the importance of reliable information when it comes to new health and fitness technology. That’s why our review combines knowledge from multiple competitors, expert opinions, and our own experiences to provide a comprehensive and trustworthy analysis of the Lumen Metabolism Tracker.

Our review will delve into the effectiveness of Lumen in achieving a fat-burning state, also known as fat burn mode, enhancing metabolic flexibility, and elevating your flex score by helping you enter the fat burning mode.

Getting Started with Lumen

A person setting up a Lumen device, a handheld device that measures metabolic health

Setting up your Lumen device is a breeze. Simply follow these steps:

  1. Download the Lumen app.
  2. Create an account.
  3. Answer a series of lifestyle and physiology questions to establish your personalized profile.
  4. Choose from various track options, such as Metabolic Health, Fitness Performance, and Healthy Weight Loss, to align with your specific health goals.

You can also connect Lumen to other health accounts like Apple Health, Google Fit, or Garmin IQ for seamless integration with your existing fitness ecosystem. The Lumen starter box includes everything you need to begin your metabolic health journey: the Lumen device, a docking station, a USB cable for charging, a travel pouch, and a Getting Started Guide.

We highly recommend attending the weekly live onboarding webinar offered by Lumen, which provides an in-depth overview of the device’s features and functionality, along with a Q&A session to address any questions or concerns. This informative session will ensure you’re fully prepared to make the most of your Lumen experience.

The Aesthetics and Materials of Lumen

Lumen Reviews

Lumen’s sleek design features a plastic shroud and metal lip covering, giving it a modern, appealing look. The device also comes with a magnetic cap to keep it clean and protected when not in use.

Charging your Lumen is easy, thanks to the included USB-C charger and stand. The stand not only keeps your device charged but also serves as a convenient display for when you’re not using it.

Understanding Lumen’s Functionality

A person looking at a Lumen device, a handheld device that measures metabolic health

At its core, Lumen measures your metabolism by determining if your body is burning carbs or fat based on the carbon dioxide concentration in your breath. A higher CO2 level indicates that your body is primarily burning carbs, while a lower concentration means your body is in a fat-burning state. By providing these insights, Lumen aims to improve your metabolic flexibility and help you gain control over your individual macronutrient needs.

For the most accurate readings, consider using the device multiple times a day, preferably in the morning. The more you use Lumen, the better it understands your unique metabolism, allowing it to provide increasingly tailored recommendations over time.

Remember, Lumen is not an instant fix for weight loss and metabolic health. Success with Lumen requires dedication to the program, including regular breath tests, data entry, and adherence to the personalized dietary recommendations. Lumen is a tool that empowers you to make informed choices about your nutrition and exercise, but the responsibility for implementing those choices still lies with you.

Real-life Performance of Lumen

A person using a Lumen device, a handheld device that measures metabolic health

Many Lumen users report improved metabolic flexibility, better food choices, and increased physical activity after using the device. However, keep in mind that results may differ among individuals, and success hinges on commitment to the program.

Some users have experienced challenges with connectivity issues or frustration with not losing weight as quickly as they’d hoped through intermittent fasting.

Lumen’s Effectiveness for Weight Loss

While Lumen is not a one-stop solution for weight loss, it can aid in your journey by:

  • Guiding you to make healthier food choices personalized to your body and metabolism
  • Providing customized macronutrient recommendations
  • Helping you understand when your body is in a fat-burning state

Lumen can support your weight loss goals. For more insight, check out a lumen review.

However, bear in mind that a balanced diet and regular exercise are integral parts of any weight loss plan. Lumen can provide valuable guidance and insights, but ultimately, it’s up to you to put in the work and make the lifestyle changes needed to achieve your desired results.

Lumen App Experience

A person using a Lumen app, an app that accompanies the Lumen device

The Lumen app offers a wealth of features to support your metabolic health journey, including personalized macro recommendations, recipes, and nutrition guides. You can also connect the app to your Apple Watch for an even more seamless experience.

However, some users have reported connectivity issues when trying to link their Lumen device to their phone or other devices, particularly when the battery is running low. Additionally, some individuals have expressed frustration with not losing weight as quickly as they had hoped, despite following Lumen’s nutrition advice.

Despite these challenges, the Lumen app continues to evolve, and the company actively seeks user feedback to improve the user experience and address any issues. With dedication and patience, the Lumen app can be a valuable tool in your health journey.

Weighing the Cost of Lumen

Lumen device cost

Lumen’s cost ranges from $249 to $349, depending on the subscription plan you choose. Though it may seem like a substantial investment, consider the potential benefits of enhanced metabolic health, weight loss, and a deeper understanding of your body’s unique needs when weighing against the cost.

Before committing to a Lumen subscription, consider whether you’re ready to dedicate the time and effort required to see results with the device. If you’re prepared to make a true commitment to improving your metabolic health, Lumen may be a worthwhile investment in your overall well-being.

Is Lumen the Right Choice for You?

using lumen 1

Lumen is a powerful tool for those dedicated to learning about their metabolic health and making lifestyle changes accordingly. However, bear in mind that Lumen might not provide accurate results for individuals with specific medical conditions like diabetes, acute asthma, or COPD, as well as for pregnant individuals.

If you’re considering Lumen as part of your health journey, take the time to understand your unique needs and whether this device is a good fit for you. With dedication and commitment, Lumen can be a valuable tool in optimizing your metabolic health and achieving your weight loss goals.


In conclusion, Lumen is a fascinating and innovative device that offers personalized insights into your metabolism, empowering you to make informed choices about your nutrition and exercise routine. With dedication and commitment to the program, Lumen can provide valuable support in your journey towards improved metabolic health, weight loss, and overall well-being.

As with any health and fitness technology, it’s crucial to weigh the potential benefits against the cost and ensure that Lumen is the right choice for your unique needs. If you’re ready to unlock the secrets of your metabolism and optimize your health, Lumen could be the key to unlocking your full potential.

Frequently Asked Questions

Does the Lumen device really work?

Yes, the Lumen device has been proven to work effectively. The 2021 study conducted by San Francisco State University found that the CO2 levels obtained with the Lumen device matched the values from the metabolic cart.

Is Lumen legit for weight loss?

Overall, Lumen can be an effective tool in helping you achieve your weight loss goals by tracking your body’s metabolism and giving personalized dietary advice.

How much does Lumen cost per month?

Lumen offers a free membership with unlimited real-time metabolic measurements, but if you choose to extend your membership, you’ll pay $19 per month.

How will Lumen help me lose weight?

Lumen helps you understand your body’s metabolism and how it uses energy, so you can adjust your meals and activities to better support weight loss. It measures and tracks your sleep, nutrition, and exercise to improve metabolic flexibility, while reducing hunger and increasing energy levels.

How does Lumen measure metabolism?

Lumen measures metabolism by analyzing the levels of CO2 in your breath, which reveals what your body is using for energy – either fat or carbohydrates.

Daniel Casciato is a highly accomplished healthcare writer, publisher, and product reviewer with 20 years of experience in the industry. He is the proud owner and publisher of Healthcare Business Today, a leading source for the healthcare industry's latest news, trends, and analysis.

Daniel founded Healthcare Business Today in 2015 to provide healthcare professionals and enthusiasts with timely, well-researched content on the latest healthcare news, trends, and technologies. Since then, he has been at the forefront of healthcare writing, specializing in product reviews and featured stories.

His expertise in the healthcare industry is evident from the numerous publications he has written for, including Cleveland Clinic's Health Essentials, Health Union, EMS World, Pittsburgh Post-Gazette, Providence Journal, and The Tribune-Review. He has also written content for top-notch clients, such as The American Heart Association, Choice Hotels, Crohn's & Colitis Foundation of America, Culver's Restaurants, Google Earth, and Southwest Airlines.

Daniel's work has been instrumental in educating the public and healthcare professionals about the latest industry innovations. In addition, his dedication and passion for healthcare writing have earned him a reputation as a trusted and reliable source of information in the industry.

Through Healthcare Business Today, Daniel is committed to sharing his knowledge and expertise with the world, contributing to the growth and development of the healthcare industry.