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FoodMarble AIRE Review [2021]: Uncover Your Unknown Food Intolerances


FoodMarble AIRE
FoodMarble AIRE Review

The FoodMarble AIRE brings the power of clinical food intolerance testing to your palm at an affordable price

Product Brand: FoodMarble

Product Currency: USD

Product Price: 179

Product In-Stock: InStock

Editor's Rating:

You sit down and eat a “healthy meal”. Bite by bite, filling your stomach to the perfect 80 percent mark. 60-minutes later, however, your body disagrees:

  • Gas
  • Bloating
  • Indigestion
  • Diarrhea
  • Abdominal cramps

Was it the steamed broccoli? The grains? Or perhaps, the apple for dessert?

What if you could pinpoint the exact foods that cause your body doesn’t like? Including the broadly recommended so-called superfoods.

A new gadget called the FoodMarble AIRE is paving this reality. The company graciously sent me a device to try and report back. After several months of daily use, I’m writing a thorough FoodMarble AIRE review post. By the end you’ll know if this food analyzing technology is right for you and worth the cost.

In a hurry?

Use the exclusive FoodMarble promo code NURBAN for 15% off.

What is FoodMarble?

FoodMarble AIRE Review Device

FoodMarble makes a tiny, handheld breathalyzer that gives you real-time insight into how your digestion handles a type of commonly problematic carbohydrates called FODMAPs. Identifying sensitivities and intolerances helps you make better decisions and avoid sometimes debilitating digestive discomfort. For those with digestive disorders, this device can change lives.

I’m a non-celiac without any known serious food intolerances. So I didn’t expect much. Food intolerances, however, can change over time. Problematic foods become fine, and vice-versa. FoodMarble can help you track changes without going through the full-blown symptoms listed above.

The breathalyzer itself pairs via BlueTooth to any modern smartphone. My unit came with a partial charge. It took me a month to discover that the mouthpiece snaps off for easy cleaning. The app is quick to setup, and intuitive. Open the app, select the big “+” button, and then select “Breath”. Power on the device by tapping the only button located on its side. The AIRE warms up in about 20 seconds. Unlike the Lumen, and some other awesome biohacking gadgets I have, this gadget only takes a single, light 5-second breath.

Your digestion score comes back on a scale of 0-10:

  • 0 signifies perfect digestion
  • 10 signifies extreme intolerance

Virtually all of my measurements fell between 0-1.5. When I ate high-FODMAP foods, I had a few exceptions with Fermentation Scores around 7-9.5. I’ll explain later.

FoodMarble AIRE Tech Specs

  • Height: 55 mm
  • Width: 55 mm
  • Depth: 12.5 mm
  • Weight: 25g
  • Charger: Micro-USB
  • Charge Time: 30 minutes
  • Connection: BlueTooth LE
  • Battery Life: 23+ readings per charge
  • Mobile Support: iPhone 5+ or Android 4.4+

What Comes in the FoodMarble Box

FoodMarble AIRE Review Box Kit
  • FoodMarble AIRE Digestive Breath Tester
  • Carrying case
  • USB charging cord
  • AIRE Quick Start Guide
  • FODMAP Testing Guide
  • Lactose powder (add-on)
  • Fructose powder (add-on)
  • Sorbitol powder (add-on)
  • Inulin powder (add-on)

Note: I received the full test kit as indicated by “add-on”. This includes the FODMAP powders in addition to the breath analyzer.

If you’re curious like me, you’re probably wondering what’s going on behind the scenes.

How the FoodMarble AIRE Works: Science & Technology

The core technology behind FoodMarble dates back to the 1970s when researchers discovered that breath testing works to identify digestive incompatibilities.

FoodMarble works by detecting the level of hydrogen in your breath. The worse you absorb your food, the more hydrogen your produce. This is the same (miniaturized) technology powering clinical testing.

The FoodMarble website nicely summarizes the science:

Food not absorbed —> Hydrogen produced —> Exhaled on breath

Every time you eat, food travels from your stomach to your intestines to be broken down and assimilated. The remainder of any undigested food passes from your small to large intestine. Bacteria use a process known as fermentation to finish processing it.

Fermentation leads to the classic unpleasant symptoms of indigestion and generates hydrogen as a result. Then the hydrogen enters the bloodstream, travels to the lungs, and eventually exhaled through your breath.

FoodMarble captures and logs hydrogen levels so that you can identify which foods are causing your problems.

Fermentation = increased hydrogen

Here’s the question…

Does it work?

So far, there’s not a lot of science behind it. Two papers, however, found accuracy comparable to the gold-standard devices used by hospitals.

One study of 13 volunteers found similar results to the clunky (and expensive) tabletop device.

The other study of 19 healthy subjects using the standard BreathTracker analyzer found similar accuracy up to 81 ppm. Making FoodMarble useful, but only up until you score the maximum of 10. At that point you’d need clinical testing for hydrogen breath levels exceeding 81 ppm.

With FoodMarble’s similar accuracy to clinical-grade food intolerance testing, it’s hard to justify the hassle and cost of visiting the hospital.

FoodMarble FODMAP Test Kit

FoodMarble FODMAP Test Kit

FODMAPS (fermentable oligosaccharides, disaccharides, monosaccharides and polyols) are a type of carbohydrate that commonly ferment in the intestines and lead to classic digestive symptoms. FoodMarble AIRE primarily tests for FODMAP sensitivity.

Naturally, you consume different them in a wide variety of foods. Common FODMAP sources include:

  • Onions
  • Garlic
  • Fruit
  • Grains
  • Legumes
  • Dairy
  • Artificial sweeteners (some)
  • … and many others

Those with digestive issues generally experience symptoms from overconsumption of these foods. FoodMarble has standarized the process of determining which (if any) you’re sensitive to with sachets of the most problematic ingredients.

If you order it the add-on, they send a kit containing the powdered form of several different FODMAPS:

  • Lactose
  • Fructose
  • Sorbitol
  • Inulin

The app has a “Challenges” section specifically designed to record and track your responses to these FODMAPS.

FoodMarble AIRE Review: App

FoodMarble AIRE App Review

The FoodMarble AIRE requires its accompanying app in order to record measurements and log your data.

The app has 4 main tabs:

  • Home (dashboard)
  • Challenges (record FODMAP powder tests)
  • Food (database)
  • Settings (user and profile settings)

A large plus button sits in the middle of the tabs and lets you log various measurements. FoodMarble logging options include:

  • Breath
  • Meal
  • Symptom
  • Poop
  • Stress
  • Sleep
  • Notes

This is the section I used most. Particularly, the breath measurement. I’d take measurement 15 minutes before meals, immediately after meals, and then one hour later. After every breath, a box pops up asking you to rate symptom severity (abdominal pain, bloating, flatulance). Generally, I found my one hour post-meal breath reading would catch any symptoms that I experienced.

Compared to apps like Cronometer and My Fitness Pal, the FoodMarble food database is quite simple. I had a hard time finding certain foods and snacks.

To find correlations between your symptoms and lifestyle habits, the app prompts you to rate your perceived sleep quality and stress levels. I skipped step since I use other devices like the Oura Ring and Biostrap to get highly accurate sleep and stress biometrics.

Overall, the FoodMarble app is well thought out and designed. Without reading the instructions, I went from unboxing to downloading and clicking through the app, to getting the results from my first reading in slightly over 5 minutes.

FoodMarble AIRE Pros & Cons


Simple & easy to use



One of few digestive tracking tools

Long battery life

Correlates lifestyle (like stress) and digestion

Reusable and rechargeable

Priced fairly


FODMAP tests cost extra

Best results require many measurements throughout day

Must interpret results by yourself

Food database needs expanding

Medications, alcohol, smoking can all interfere with scores

Should leave 15 minutes between measurements to allow sensor to dry

FoodMarble AIRE Review Verdict: Worth the Cost?

  • Once you’ve dialed in your problematic foods, I suggest you consult a gastroenterologist who can help identify any deeper root causes.

Holistic health practitioners agree that the gut is the bedrock of health and performance. Others like Sayer Ji in his book Regenerate, argue that the gut is core to the rapid evolution and adaptation of humans.

Food allergies present obvious symptoms. Food intolerances, however, can feel more subtle. Both lead to inflammation, which is the root of disease.We eat food to absorb and assimilate nutrients. Indigestion blocks nutrient utilization, wasting your precious high-quality groceries.

Previously, you had to visit a clinic to have a gastroenterologist help you identify problematic foods. Costing time and a huge bill. FoodMarble AIRE has miniaturized this same technology to fit in the palm of your hand.

But for the pressing question…

Does it work?

According to a peer-reviewed validation study and 17,906+ satisfied users — Yes.

With one five-second breath, you understand how your body is processing your recent meal.

FoodMarble AIRE costs $179, and is available both on Amazon and their website. For an extra $29 you can get their optional FODMAP test sachets.

Use the exclusive FoodMarble coupon code NURBAN for 15% off.

Nick Urban

Nick Urban is the Founder of Outliyr, an expert biohacker of 10+ years, Data Scientist, Certified CHEK Practitioner, host of the Mind Body Peak Performance Podcast, and a High-Performance Coach.

Affiliate Disclosure

This post may contain affiliate links, which means I receive a small commission if you make a purchase to support my work at no cost to you. Thanks for your support!

2 thoughts on “FoodMarble AIRE Review [2021]: Uncover Your Unknown Food Intolerances”

  1. Thanks for the report Nick. Just got mine after watching a Dr. Willam Davis YouTube. In one episode he mentioned that the instructions with the Aire are not correct and somewhere he explains how it is suppose to be performed but I can’t find this. Anyway, looking forward to using it.

    • Glad it’s helpful! Can you dig that up? Was he referring to the instructions for the FODMAP? I’m not sure what other directions could be followed wrong.


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