You can add any scanned item to your Favorites by simply tapping the favorite (heart) icon on the upper right:

Once added you can remove items from your Favorites by either tapping the heart icon again to unfavorite the item or by following these steps:

  1. Navigate to your Favorites tab under Add > Food > Favorites
  2. Tap to select the item you want to remove from your list
  3. Then simply tap the filled in heart icon again to unfavorite

For those people using an iOS device we also provide a shortcut from any of your food lists where you can favorite / unfavorite an item simply by swiping right to left over the item and then tapping the heart icon: