Gut Twin 
Bloated again? Let's find out why.
Gut Twin builds a picture of how your own gut reacts to food and stress, then helps you test the likely culprit, one change at a time. So you can stop guessing and stop cutting out everything.
- A first guess at what upsets your gut, on day one
- Find out in two weeks whether your suspect food is really the problem
- Free, on iPhone and Android
We're inviting testers in small groups and will email you when your spot opens.