What's Off, What's On

A new list cites 218 things that may cause cancer--and a couple that don't

Of all the things that could one day kill you, a diet soda should not be high on the list. Twenty years ago, however, diet soda seemed like lethal stuff--or at least the saccharin it contained did. According to studies at the time, saccharin was a direct cause of bladder cancer. Of course, in order for the sweetener to do you harm, it had to make up at least 3% of the gross weight of food you ate every day--no easy task for a substance consumed by the quarter-teaspoonful. Oh, and it also helped if you were a laboratory rat, the...

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