After reading thru the health info on acrylamide in Wikipedia (I know, I know) this line stood out for me:
". . . home-cooked food tends to contribute far less to overall acrylamide levels than food that was industrially prepared, and that avoiding overcooking is one of the best ways to minimize exposure at home."
Home grown might do it also for lots of modern risks. And, these aren't just "modern" risks. When we turn over our diet to a food industry look what happens:
During the 19th century, lead was commonly added to mustard and tobacco; candy and chocolate; wine; and lead was used to color cheese. Of course, water was added to milk and since that was done, chalk could be thrown in to make it white again. All this without the knowledge of the consumer unless they could somehow fathom it out from circumstantial evidence like early death. Or, as Thoreau suggests, "Some circumstantial evidence is very strong, as when you find a trout in the milk."
Genetic engineering may be about to change how you might find a trout in cows milk.
Steve