Claims that aspartame is carcinogenic may have been premature.
Evidence from:
The EFSA Journal (2006) 356, 1-44
“…a new long-term carcinogenicity study on aspartame”
Dietary exposure to aspartame rarely exceed 10 mg/kg bw even in heavy users.
Cancer is indivisible, aspartame use in processed foods is very common, strong evidence of carcinogenicity could cause problems to food manufacturers and their insurers.
Further detail: