• What does my fermentation score mean?

  A fermentation score is an objective reading of the gases (hydrogen and methane) detected in your breath at a given time. It provides a snapshot of the fermentation activity happening in your gut — a natural process driven by your gut microbes as they break down certain carbohydrates or FODMAPs as they're also referred to. Remember, this number isn’t a “good” or “bad” score — it’s simply information to help you better understandPopular

• Your Results: Hydrogen & methane

  Fermentation is a natural and healthy process. It’s something everyone experiences — but for some, the balance tips and those normal processes can start to feel uncomfortable. In your gut, bacteria break down certain carbohydrates through fermentation, producing gases as byproducts — primarily hydrogen and methane. Fermentation plays a vital role in maintaining a balanced gut environment. However, when gas builds up too quickly orPopular

• Combined Fermentation Score Explained

  📊 Understanding Your Fermentation Score Your fermentation score (or F-score) reflects the combined levels of hydrogen and methane gases in your breath. These gases are produced when microbes in your gut ferment food, and together they give us a picture of what’s happening in your digestive system. Both hydrogen and methane contribute to fermentation. Their combined effect is stronger than either one alone — so even if each gas is low individually, the total score may place you in the mPopular

• Monitoring SIBO with FoodMarble

  Living with SIBO can feel overwhelming. Symptoms can be unpredictable, and progress isn’t always easy to measure. With FoodMarble, you don’t have to manage this journey alone. AIRE 2 is clinically validated and used by thousands of healthcare professionals around the world for SIBO monitoring. 👉 If you haven’t yet received a SIBO diagnosis, FoodMarble can connect you with a healthcare provider. Simply email our team at healthcare@foodmarble.com, and we’lPopular

• High Evening Results, Gastric Transit and FODMAP Stacking

  Why Do My Breath Test Results Rise Later in the Day? 👉 If you’ve just started your breath testing journey and noticed your results rising later in the day, you’re not alone — and it doesn’t mean you’re doing anything wrong. This is a very common pattern, and understanding why it happens can give you more confidence in interpreting your results. 1. Gastric Transit Time Gastric transit time is the amount of time it takes for food and drink to move through your digestive system. ThSome readers

• Persistently High Methane Levels

  Persistently High Methane Levels If you purchased an AIRE 2 to figure out what's causing your bothersome digestive symptoms—but haven’t received a formal medical diagnosis for conditions like IBS — you may have already uncovered valuable insights about your personal food triggers and intolerances. For some users, monitoring daily breath readings reveals persistently elevated methane levels. While this can feel confusing or even discouraging, remember: these readings are giving you new infSome readers

• Getting High Scores? Here’s How to Make Sense of Them

  Understanding Your Fermentation Scores Fermentation is a natural process that happens in the gut — and high levels are not always a bad thing. What matters most is learning how your body responds to different foods. By using your FoodMarble device consistently, you can track fermentation levels over time and see how they change with what you eat. Logging meals in the app helps you connect changes in your scores with specific foods, giving you clearer insights into your unique digestive pSome readers

• Helpful Tips to Understand Your Results

  Look for High Readings When your breath test readings rise into the high range, it can feel concerning — but it doesn’t always mean something is “wrong.” What it suggests is that part of what you ate or drank wasn’t fully digested. Instead, those carbohydrates are being fermented by bacteria in your gut, producing gas that shows up in your breath results. After each test, the app will match your logged meals with your readings. It highlights the amount of hard-to-digest FODMAPs in eachSome readers

• Understanding Bloating and Your FoodMarble Results

  Understanding Bloating and Your FoodMarble Results If you’re dealing with bloating, you’re definitely not alone — it’s one of the most common digestive complaints. It can feel frustrating when your symptoms don’t always match your FoodMarble fermentation scores, but this doesn’t mean your device isn’t working. Bloating can have many causes, and fermentation is just one of them. Your AIRE 2 is designed to track fermentation — a powerful piece of the puzzle — but there are other factors at pSome readers

• What do a healthy person's readings look like?

  What scores should I aim for? What do a healthy person's reading look like? We regularly get asked “What f-scores should I aim for?” or "What do a healthy individual's readings look like?" This usually comes from people who are struggling with high fermentation levels and daily gut symptoms. The honest answer? There isn’t a one-size-fits-all target. The Goal Isn’t Zero While low fermentation scores often correlate with fewer symptoms, aiming for zero shouldn't be the goal. ReSome readers

• Back to back tests showing different results?

  If you do multiple tests in quick succession, the moisture on the sensor can skew your results. For this reason, we recommend leaving at least one hour between breath tests, and taking no more than 10 tests during a regular day. When you're completing a food intolerance test, you will go through the Discovery section of the app and once you begin the test, the FoodMarble app will communicate to your device signalling for it to remain powered on with the sensors warmed up for the duration of theFew readers

• Challenge Day: High baseline reading

  Low Baseline Hydrogen Before commencing your FoodMarble challenge, the app will prompt you to take a baseline breath test. It's important to record a low baseline hydrogen reading before proceeding with the challenge. Your hydrogen levels need to be low enough to ensure that we can easily measure any change that happens during the test. Your baseline hydrogen levels should be under 3.5 beFew readers

• Considerations when comparing day-to-day scores with other test results

  AIRE 2 is a hydrogen and methane breath testing device which is an ideal tool for those who have already been diagnosed with IBS or SIBO, as it allows you to monitor your breath readings day to day, tracking any change over time. If you've previously been diagnosed with SIBO, having completed a SIBO test under the guidance of a medical professional, you might be tempted to compare these results with your AIRE 2 day to day readings, however there are a few things to keep in mind: Firstly, dFew readers

• Inulin Challenge: Late rise in your f-scores

  Concerned about Inulin? If you completed your inulin challenge and your fermentation levels didn't rise throughout the 3-hour testing window, you would have been given the option to extend the test by an hour. If by then you still hadn't observed a rise in your fermentation levels, the FoodMarble app would have calculated your final test result as low. If you began to experience some symptoms which prompted you to continue testing hourly for the rest of the day and sure enough you notiFew readers

• Antibiotics, Probiotics and Prebiotics

  How do antibiotics impact the gut microbiome? Antibiotics are used to treat bacterial infections by killing or inhibiting the growth of bacteria. While antibiotics can be crucial for treating infections, they can also have unintended effects on a person's gut microbiome, which is a complex community of trillions of microorganisms that live in the gastrointestinal tract. It can take weeks for your gut microbiome to build back up after a course of antibiotics. How do antibiotics iFew readers

• There's something about Inulin

  What is Inulin? Inulin is a type of dietary fiber that belongs to a class of carbohydrates known as fructans and it is found in a wide range of food. It is especially prevalent in garlic, onions, and root vegetables. It is also a major component of wheat, so you will find inulin in foods such as bread, pasta, and cereals. What have AIRE 2 users discovered about Inulin? Among the FODMAPs tested in the Food Tolerance Kits, inulin has been identified as a digestive troublemaker aFew readers

• Lactulose Test Results vs Day to Day Readings

  Why You Can’t Compare Daily Breath Readings to a Lactulose Test Daily breath tests and lactulose challenge tests are two very different tools—and their results aren’t directly comparable. A lactulose test is done while fasting. You drink a synthetic sugar, and your gut’s response is measured in a clean, controlled setting. This helps identify specific fermentation patterns, but it doesn’t reflect how your gut behaves in real life. Daily breath readings, on the other hand, happen dFew readers

• Gastric Transit Time

  Gastric Transit Time Gastric transit time refers to how long it takes for food and drink to move through your digestive system, from the stomach to the intestines and eventually to the colon. This process is unique to each individual and can be influenced by many factors, so the times given below are general guidelines rather than exact rules. Small intestine: Food typically leaves the stomach and enters the small intestine within 1–2 hours. Colon: From there, it usuaFew readers