The nearest major airport is Indianapolis International Airport (IND / KIND). This airport has international and domestic flights from Indianapolis, Indiana and is 71 miles from the center of Purdue University.
Here is the official FDA definition of natural flavoring: Natural flavor is the essential oil, oleoresin, essence or extractive, protein hydrolysate, distillate, or any product of roasting, heating or enzymolysis, which contains the flavoring constituents derived from a spice, fruit or fruit juice, vegetable or vegetable juice, edible yeast, herb, bark, bud, root, leaf or similar plant material, meat, seafood, poultry, eggs, dairy products, or fermentation products thereof, whose ...
First of all, regulations for the word natural only apply to flavors; anywhere else you find it on food packaging means absolutely nothing regarding quality. Secondly, the FDA definition of natural flavors and natural flavoring allows for the substance to be extracted from plant or animal matter..