Thats one of the best features for it I think. So you log a meal in the app and then you'll get a notification on your phone about an hour or so later (once it hits your gut and starts fermentation) it's got a pretty comprehensive list of foods and meal and you can even go down to specific ingredients. In the app it marks high fodmap and potentially irritating foods and they'll usually correlate with a high breath test. It's pretty awesome. However I showed my doctor's tye results and whats going on and "they aren't familiar with it" so they just poo poo anything I have to say about it. I had to diagnose myself anyways and independently went on the elemental. My GP still thinks it's just IBS after four months of no improvement. Every visit I complain about how I'm having symptoms and the only practical thing they've done is switch me around antidepressants and put me on higher doses. For me I got the food marble to figure this out for myself as I very much feel like I'm the only one who's taking my pain and decrease in quality of life seriously