Scientists at the National Cancer Institute conducted a five year study in humans to determine if the diet soda sweetener aspartame increased the risk of developing cancer. No increased risk was found among more than half a million older Americans.
"It goes a fair way toward allaying concerns about aspartame," said Michael Jacobson, head of the Center for Science in the Public Interest. Italian researchers last year had reported increases in cancer rates in rats from aspertame.
"It's very reassuring. It's a large study with a lot of power," said Richard Adamson, with the American Beverage Association. [But] "Drinking a diet soda at lunch does not mean it's okay to have a larger dessert at dinner," a science group warns.