Not sure about the specifics in the US, but those are well defined categories. Wikipedia lists two brief excerpts here: https://en.wikipedia.org/wiki/Flavor#Re

Not sure about the specifics in the US, but those are well defined categories. Wikipedia lists two brief excerpts here: https://en.wikipedia.org/wiki/Flavor#Regulations_on_natural_flavoring https://en.wikipedia.org/wiki/Flavor#Regulations_on_natural_...