A study of rats links low doses of aspartame -- the sweetener in NutraSweet, Equal, and thousands of consumer products -- to leukemia and lymphoma.
But food industry officials point out that many other studies have found no link between aspartame and cancer.
The rats in the study were fed various doses of aspartame throughout their lives. In female but not male rats, lymphoma and leukemia were significantly associated with daily aspartame doses as low as 20 milligrams (mg) per kilogram (kg) of body weight. And there was a trend toward these cancers at doses as low as 4 mg/kg of body weight.
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