Of course, we don't often see TV commercials or billboard ads for such vegetables, because the companies that grow them can't afford the ads (or perhaps think they wouldn't be cost effective?) But if we lived in a world in which we saw way more TV commercials and other expensive-to-place ads for vegetables than for fast food and pharmaceuticals, it would be a far healthier world. You can see the Times article here, unless you've used up your allotment of 10 free ones this month, or unless you're lucky enough to afford a subscription.
Note to The New York Times: It's a shame you are only letting me read 10 articles of yours per month for free. I always promote you; but since this was my 10th article this month (and I parse them like a miser), I'm now unable to read any more of them until December. Your loss, my loss, and a loss for my readers.