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WASHINGTON -- The sweetener aspartame, which has been targeted in the past for potential health concerns, poses no increased risk of cancer, according to a federal study released earlier this week at a meeting of the American Association for Cancer Research.
Researchers at the National Cancer Institute studied the diets of more than half a million older Americans.
Aspartame came on the market 25 years ago and is found in thousands of products.
Italian researchers last year reported results of the largest animal study ever done on aspartame, involving 1,800 lab rats. In that study, females developed more lymphomas and leukemias on aspartame than those not fed the sweetener.