“Cancer alert over rocket: Trendy salad leaves exceed safe levels of carcinogenic nitrates in one in EVERY ten samples.”
Some scares never go away no matter whether there is a remotely plausible basis for the scare (maybe asbestos in talc) or pure insanity (vaccines causing autism).
Whole Foods chemists, an incongruity if ever there were one, must have a helluva job. They somehow must explain to suckers customers how the same chemical can be both good and bad for you.