Accessing the barcode reader:
On the dashboard, tap on the '+' button and then, on the food logging screen, tap the 'catalog' icon, as shown below.
Once on the catalog, simply tap on the barcode icon on the top right section of the screen, just on the right of the search field, as shown below.
Point your phone's camera towards the bar code you wish to scan so that you can you can clearly see it on your screen as seen below:
Once the application has recognized the bar code, it will automatically switch to the weight selection screen, if you are equipped with a compatible scale you can directly get the weight from it when paired. If not, you can set your food weight manually.
This screen also gives you the ability to take a picture of the food you are logging so that it will be easier to identify later on. Click "Ok" on the bottom right of the screen. Note that you can set this food as favorite by clicking on the star icon, as shown below:
The last screen summarizes the information for the food you are about to log. To add the whole quantity, click on 'add' text of the header.
Alternatively, you can modify the serving or weight of the food by tapping on the serving details or on the weight value at the center of the scroll wheel. You can also scroll the wheel clockwise or anti clockwise to increase or decrease the weight value.
Congratulations, you now know how to add a food using barcode scanning.