Your breath can be used as an indicator of good health, detecting heart failure, sleep disorders, and now whether your favorite foods are actually the source of your digestive pains. Irish startup FoodMarble has developed the Aire, the world’s first personal digestive tracker that will detect which foods are most compatible with your digestive system.

According to FoodMarble, gas related to fermented foods that aren’t digesting in your large intestine can be tracked by breathing into the gadget. You’ll receive a score rating your body’s discomfort level.

“Some people have symptoms that impact daily life, like irritable bowel syndrome,” Aonghus Shortt, CEO FoodMarble, said in an interview with VentureBeat. “They are intolerant of certain foods, but may not know which ones. We want to make this measurable.”

Read: Does Farting Burn Calories? Health Benefits And Risks Of Passing Gas

Food is typically digested by passing from your stomach to lower intestine and is absorbed into your body. However, undigested food moves from the small to large intestine, where it interacts with bacteria, causing gas that is the culprit for that painful bloating or flatulence, according to WebMD.

Breath testing is not a new concept and has been used in medical facilities around the world, including Johns Hopkins Medicine. However, Aire is the first device that can be used at home.

A survey from 2013 showed that 74 percent of Americans suffer from digestive issues, and a paper published last year claims that a diet tailored to your digestive system can aide in weight loss.

FoodMarble Chief Operating Officer Lisa Ruttledge told VentureBeat that the company can check typical triggers, such as wheat, fruits and dairy, to eliminate these issues.

Read: Is Farting Good For Us? What Our Flatulence Says About Our Health

However, the breathalyzer cannot be used to help diagnose gluten-related issues, Celiac, Crohn’s or Colitis, according to the company’s website. The tool is meant to be used as a guide to determine which foods work best with your individual digestive system to help plan a healthy diet.

There are many known foods that are bad for your gut, including high-fat and fried food, as well as alcohol, according to Health.

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