The Omnivore's Dilemma

My brother sent me a book for Christmas.
It's called "The Omnivore's Dilemma", by Michael Pollan.
I'm not sure that I'll get all the way through it but I find this paragraph most interesting:

"Venture farther, though, and you come to regions of the supermarket where the very notion of species seems increasingly obsucure:  the canyons of breakfast cereals and condiments; the freezer cases stacked with "home meal replacements" and bagged platonic peas; the broad expanses of soft drinks and towering cliffs of snacks; the unclassifiable Pop-Tarts and Lunchables; the frankly synthetic coffee whiteners and the Linnaeus-defying Twinkie.  Plants?  Animals?!  Though it might not always seem that way, even the deathless Twinkie is constructed out of...  well, precisely what I don't know offhand, but ultimately some sort of formerly living creature, i.e., a species.  We haven't yet begun to synthesize our foods from petroleum, at least not directly."

With Twinkies and Pop-Tarts being du jour menu items for Boy Scout camping trips, this is very relevant.  He hasn't mentioned "Uncrustables" yet, but maybe they are not as common cultural items as Twinkies yet!