Millennials · Personal Growth

Can Lumen Metabolism Tracker Hack Metabolism? My Full Lumen Review

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Hi, my name is Jasmine, and I am a yo-yo dieter.

I’ve tried diets and different workout plans in the past. And while some have helped me with weight loss and weight management, I still experience weight gain after the fact. Sleep tracking was another issue I was falling behind in. 

I was looking to hack my diet and lose weight in a way that let me know if all my efforts were actually working. I know you can get on the scale to see if what you are trying is working, but that can take days! When it comes to counting calories and exercise, it can feel like years!

Okay, I am exaggerating a bit here, but you get what I am saying. For those of you who recently started a diet, you know the agony of it all. 

I knew there had to be a better way to tell what worked for me and what didn’t. And it was this thinking that led me to use the Lumen metabolism tracker. This lumen device helps to increase your metabolic state.

What To Expect From This Lumen Review?

This post will tell you about my experience using the Lumen Metabolism Tracker and how it compares to other diet programs I’ve done in the past. And I will share a special code with you to get a discount on one if you decide to buy it! To conclude, you will definitely know if your lumen flex score will increase or not. 

But before I get into this review of the Lumen Metabolism tracker, you should probably learn more about what this device actually does and how it can help cut grams of carbs.

What is the Lumen Metabolism Tracker?


Let me start by saying that I’ve never heard of or used metabolism trackers in the past. To add to that, when I learned that the Lumen flex score is real, I was quite impressed! To begin with, Lumen is the world’s first hand-held, portable metabolism tracking device to measure respiratory exchange ratio and metabolic state accurately. Moreover, its claim to fame that Lumen Fitness Tracker can hack your metabolism to lose weight and help you reduce grams of carbs.

Here is how you can increase your lumen flex score.

To begin with, this Lumen breathalyzer tracks your resting metabolic rate (rmr) to determine if you are burning more fat or cutting more grams of carbs. If you are burning fat, you are closer to your weight loss goals. However, if you are burning mostly carbs, well, you may have some work to do (maybe more physical activity) to get closer to your weight-loss goals. Nonetheless, it does this by simply blowing into the device.

How Useful Is the Lumen Metabolism Tracker Flex Score?

The device syncs to an app that includes metabolic testing, personalized nutrition plans, and research on several other resources to learn more about living a healthy lifestyle overall so you can lose weight for good.

The Lumen health device also has a daily lumen flex score (insight) that improves your metabolism by improving metabolic flexibility. Good Metabolic flexibility is your body’s ability to shift efficiently between using body fats or carbs as a source of energy. Additionally, it’s proven to meet the gold standard of metabolism measurement (RER) in multiple validation studies.

The Story Behind Lumen

Lumen began with twin sisters Merav Mor and Michal Mor—two Ironman winners and PhDs in physiology. As scientists and athletes, they were passionate about developing a way to provide personalized nutrition plans but knew the only way to measure metabolic state was costly and time-consuming.

So they teamed up with entrepreneurs with experience building large companies, Daniel, Dror, and Avi. Besides that, after two years of R&D, they developed the first Lumen prototype. The prototype measured metabolism in a single breath, in less than a minute, instead of an hour-long test in a lab!

After four years of hard work and hundreds of beta users, the Lumen team launched on Indiegogo. It broke the $1 million thresholds on IndieGogo in weeks, and now it is leading the way in bringing personalized nutrition to the entire world.

Does Lumen Metabolism Tracker Work? My Honest Review

I know what you are thinking. “This sounds awesome but is Lumen Metabolism worth it?” Does Lumen work? Let me tell you about my experience with Lumen: hack your metabolism and lose weight, believe me when I say that!

I was lucky to get a Lumen measure metabolic device to try for free! Yippee! And I used every minute to understand how Lumen calories review can be presented to you in simple words.

Lumen Metabolism Tracker

According to the Lumen app, you need to use the metabolism analyzer for 2 weeks to get your personalized flex score. Lumen Flex score reflects how efficiently your body switches between carbs and fats as fuel. So I wanted to try it out every day for at least that time. 

During this time, I did the Lumen breath measurement test at times they recommended, which include:

  • When I first wake up
  • Before I work out
  • 30 minutes after I work out
  • After lunch
  • After dinner

I also tried to cut grams of carbs and followed Lumen nutrition guidelines recommended in the app. While I was not always successful with this, I tried my best to stick to the meal plan. However, I did have more success losing weight with Lumen when I started using the Diet Direct meal plan instead. Read more about my experience with Diet Direct here.

You're Burning both Carbs and Fat Meter
This Week's progress

Goal of Lumen Metabolism Tracker

The goal is to burn more fat than carbs. This is how you lose weight. And it was the best gift when I could get three or less in the morning. 

Once I blew into the device for the day, the app gave me a nutrition and fitness plan for the day, depending on if I was burning more carbs or fat. And the diet plans do carb cycling, so you have a high carb and low carb days.

Personal Nutrition Plan
Today Nutrition Plan
Low-carb meal options

Overall, it was all pretty easy to figure out because the app guided me through the steps. Then, all I had to do was follow the instructions, and I was good to go!

The Pros Of Using Lumen

I lost weight.

I want to start by saying that I still managed to lose three pounds in my second week of using the device, even though I did not follow all my suggestions. And what’s even more valuable is that I have an understanding of why I lost weight. This alone means to me that lumen weight loss is more permanent weight loss.

I learned how sleep, diet, and exercise play a role in weight loss. Even if you are doing great in one of those three areas, not having it together in another thing can affect your results! It really does boost your metabolism!

Moreover, Lumen keto can inform you about ketosis. It points out whether your body is consuming fat to produce energy for your brain. Measure CO2 with Lumen carbon dioxide insight to understand the amount of fat or carb burning in your body. This will help you to lose weight fast and also gives you an idea about blood oxygen saturation. However, you should not compare this device with other water resistant devices such as Apple watch series, Fitbit Inspire or Fitbit Charge.

It made losing weight fun for me.

Using the device regularly made me look at my weight loss like a science experiment. I would look forward to seeing how effective an exercise I did was on my metabolism. And how effective some exercises such as holding your breath are compared to others.

For example, I learned that walking in the fat-burning zone was more effective than doing yoga alone. And doing both exercises in a single day made a huge difference in my metabolism. 

I also realized that intermittent fasting is probably one of the easiest ways to improve your metabolism. Of course, I’ve heard this before, but it was nice to see the actual results.

It kept me accountable—without any guilt.

I got to a point where I knew that I had to breathe into my Lumen after a meal and got used to seeing the notifications from the app to record my breathing 30 minutes after exercise. Having to blow into this device several times a day made it easier for me to hold myself accountable and remind myself that this is something I am working towards for better breath measurement. Even the resting heart rate monitors seemed accurate to me!

It was easy.

The best way to describe what having the device was like is similar to having a personal trainer that you can carry around with you in your pocket.

To start, learning how to use my device was super simple.

Not only that, holding your breath and breathing into the device takes five minutes to do, tops.

Lumen: Hack Your Metabolism

Are you ready to nail your fitness goal this year? For real for reals? You may want to try using Lumen! Lumen is the world’s first hand-held, portable device to accurately measure metabolism. Once available only to top athletes, in hospitals and clinics, metabolic testing is now available to everyone.

Use our promo code MISSMILLMAG to get $25 off of your order!

We earn a commission if you click this link and make a purchase at no additional cost to you.

The Cons of Using Lumen

As much as the Lumen was a total success for me, there were a couple of things that I did not like about the device.

If you are as big of a Fitbit fangirl as I am, you are out of luck for this baby to accurately track your steps.

It links to Apple Health and Garmin, so if you are an Apple watch or Garmin user, congratulations, this will be wonderful for you.

If you are a Fitbit user, however, there is an app you can download called PowerSync for Fitbit that allows you to sync your Fitbit data to Apple Health. So even as a Fitbit user, it still provides a TON of value.

Kind of annoying holding your breath and blowing into the device.

Okay, I’ll be honest, this is me trying to come up with another con because, honestly, this fitness tracking device is awesome! But, sure, it is a little annoying when it comes to holding your breath and blowing into this device every few hours. And you have to blow into the device 2-3 times each time to get an accurate reading.

But I also enjoy having to do this. The routine reminds me to think about my breath measurement several times a day, which, sadly, is not something I do enough.

So while blowing into the device a few times a day can get annoying, it has more benefits in staying mindful with your diet than the annoyance of having to do it.

Update: 3/28/ 2021 Lumen actually made an update to their device, so instead of having to blow into the device 2-3 times for an accurate reading, you now only need to blow into it 1-2 times for an accurate breath measurement!

How Much Does Lumen Metabolism Tracker Cost?

Okay, so you probably wonder what works as your personal trainer, your nutritionist, your sleep advisor, and so much more cost you?

Not as much as you may think! The app is free to use, and the device itself is $299. However, If you use our promo code MISSMILLMAG, you will receive $25 off your order!

Just click here to buy the Lumen metabolism tracker now!

And, every Lumen comes with a 30-day money-back guarantee. Meaning if you are not satisfied within 30 days of purchasing it, they will send your money back with no problem. 

Where Can I buy a Lumen Metabolism Tracker?

Right now, the Lumen Metabolism Tracker is sold exclusively on the Lumen website. However, you can sign up to buy the Lumen Metabolism tracker below.

Lumen: Hack Your Metabolism

Are you ready to nail your fitness goal this year? For real for reals? You may want to try using Lumen! Lumen is the world’s first hand-held, portable device to accurately measure metabolism. Once available only to top athletes, in hospitals and clinics, metabolic testing is now available to everyone.

Use our promo code MISSMILLMAG to get $25 off of your order!

We earn a commission if you click this link and make a purchase at no additional cost to you.

To get the app, you download it for free on the Apple app store and the Google Play store. The device is available to measure metabolism in the United States and several other countries. 

Are you interested in other Lumen product reviews? I did a little more research for Lumen Metabolism Reviews in 2021 (gotta keep it current right?)

And I saw that others also had great results using the Lumen device. Check out these other Lumen weight loss success stories. Take Ella’s lumen device review experience below as an example.

There are several reviews on their website as well. Check out some other Lumen metabolism tracker reviews from all over the world!

Well, that’s my pretty extensive lumen metabolism review! Overall, I think using the Lumen device was a great success. I do not doubt that it is the best metabolism tracker device out there. I can only imagine where I will be in a few months having used this device, but I am sure wherever I am, I will have not only lost the weight but the knowledge to keep it off for good. So buy a Lumen Metabolism Tracker to hack your metabolism and lose weight for good! I would give it 4.5 stars!

Are you considering buying a Lumen tracker, or are you still on the fence about it?

Read our FAQs about the Lumen Metabolism Tracker below.


Leave your questions about it in the comments, and I will be happy to answer your questions based on my Lumen reviews: metabolism tracking and losing weight to help you decide!


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    1. I like it. It is work to remember to use it everyday. But it not only tells you if you are burning carbs or fat, but the app gives great guidance on how to burn more fat. It is seriously like having a personal trainer in your pocket.

  1. I’ve never heard of this before but how impressive! I think this is definitely worth the investment for those trying to monitor their health and fitness goals and have a difficult time doing so. Technology is truly amazing!

  2. Lumen sounds like a great gadget to own for those who are struggling with their weight. I do like that it allows various tracking option as well to keep on top of your fitness regime

  3. I have lots of data from Fitbit MyFitnessPal but it hasn’t helped me weight. What do you do with the data from lumen and how does it help you lose weight? Does it help you take actions to improve your metabolism? .

  4. I goes by the name Ms Céline Mohair Bushra, a single mom of 3 Kids residing in Montana, United States. I was in a strong romantic relationship where i got to found out that have been fooled for good 3 years after getting in contact with wizardharry (@) programmer (.) net who run a mobile spyware on my EX mobile and discovered that all our savings were been spent on his hidden family and he often embark on a journey every weekend and lies to me that his boss needs him urgently until i got fed up with the story and decide to go further and have Wizard Harry hired of wish my instinct were very confirmed to be true, today i’m happily living my life knowing fully that i’m no longer being fooled all in the name of f u c k i n romantic relationship, most of these guys out there are just silly p r i c k and looking for single mom to feed on. we all got to be careful of who we entrust our life to. Reach wizard Harry also on WhatsApp (+1) -807-808- (6168) for hacker needs solution. he’s trusted and reliable that’s why i took out time to appreciate his work.

  5. Do NOT trust this Iraqui company!! They are liars!!
    They’re marketing to gullable people which apparently a lot of Americans are. Both me and a friend bought one of these and decided to switch them on each other to make sure it was real. On one device it would say we’re burning only carbs or fat, and then on the other device 2 minutes later it would say the opposite! It would ask you things like whether you just had a meal or a snack. It asks you to enter what kind of food it was that you last ate (because obviously, if you ate carbs, then it knows to say you are burning carbs, and vise-versa for fat). It would also ask you if you just had a work out (and how intense it was), or just woke up, before “analyzing” your breath. Obviously everyone knows that after sleeping all night or after an intense workout you will be burning fat. So every single time you enter that you just woke up for the day or had an intense workout, even if it’s not true and you actually gorged yourself with carbs (yes I tested this), it will say you are burning only fat. And every single time you put in that you had carbs with your meal, even if you’ve actually been fasting for 48 hours (literally no food, only water), it will say you are burning carbs. If you don’t tell them what you last ate and just click on the “random” analyze button, it will say you are burning both fat and carbs (to be safe, since it doesn’t have any idea). This thing is a joke. I thought it would tell me a whole lot more than common sense things that people already knew. Obviously you are going to be burning whatever you last ate, and if you haven’t ate anything in over 8-12 hours, and you knew you were on a calorie deficit the day before, obviously you are burning fat after sleeping all night. This is so dumb. This company needs to be sued for lying to people and ripping them off!!! It is banking on you not trying to prove them wrong. It is banking on gullibleness. It is banking/hoping you don’t know someone who also has a Lumen. I am so glad I decided to test this before my 30 day trial ended. Please do not promote this company!

  6. I think one of the ways to get phone hacks or credit score repair will either by doing it yourself or looking for a hacker for hire service. I got a phone hack from Sniffingnose ATrepairman DOTcom about 3 weeks back but I am not sure about the credit score repair because I have never used them for that. They only listed that as part of their services. You can write them and find out more if you need those services too.

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