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But nothing has created quite the stir and volleying between good and bad than eggs.
On an economic and baseline nutritional level, eggs are a superfood. They're cheap—a dozen eggs can usually be purchased for under a couple bucks—and they're plentiful. They're packed with protein and vitamins and minerals that have earned the egg glowing reviews. And they can be imagined into countless forms: scrambled, poached, over and easy, hard boiled, egg cetera egg cetera.
But David Spence, a professor of neurology at the University of Western Ontario, vehemently disagrees with the egg's vaulted status as a nutritional superstar. For years, he's run a stroke prevention clinic while researching atherosclerosis, the medical term for artery walls getting piled up with gunk (like fat and cholesterol) and narrowing the tunnel through which blood can flow. If arteries get clogged, strokes and heart attacks can occur.