How do you do the practice FoodMarble breath sample?Updated 10 months ago

Firstly, make sure you have downloaded the BLUE FoodMarble app.

The practice breath sample is done just before the test itself. Choose the lactulose challenge (or the glucose challenge if you are using glucose instead) and you will be guided through how to do the sample. 

This is explained at the 3-minute mark in this video on how to prepare for your FoodMarble breath test: