To point out how confusing this is: If you add a knife tip to a cow carcass to extract the steak, that is adding a highly artificial substance to the food at some point.

Likewise if you use steel balls to tumble-crush shells into calcium carbonate powder (don't know if they do, or if it's even a product, but neither are the point here).

"We are required to inform this table that your naturally wild-caught salmon had, briefly, at one time, a small hook inserted into its mouth. It was otherwise wholly without artificial feed nor other additives."

How do you write a law that slices between those ideas and hexane, clearly?