In the past few years, we have covered plenty of breath testers that can give you readings on your breath alcohol level or ketones. The FoodMarble AIRE is also worth a look. It is a pocket-sized digestive breath tester that helps you monito your gut health and discover food sensitivity.
FoodMarble AIRE combines with your iOS and Android device to record fermentation scores, log your foods, and track your symptoms. This hydrogen breath tester measures how your body digests food in real-time. It has a food library to show you the levels of FODMAP in your favorite foods.[where to get it]