Welcome to Nutrition’s Puzzlabel!
Here are the constituents of one food package:
acidity regulator: phosphoric acid
natural aromas (including caffeine)
What food is this?
It’s a nonalcoholic carbonated drink Coca-cola.
The key ingredients that can lead us to the right answer are definitely water (a drink!), carbon dioxide (the bubbles!) and caffeine (which is used in only a few drinks, one of them being coca-cola).