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Aspartame a 'possible' carcinogen but evidence limited, WHO says

The Canadian Cancer Society and Health Canada are reviewing the World Health Organization's classification of aspartame as "possibly carcinogenic.
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A customer walks down a grocery store's drinks aisle in Newcastle, Ont. on Thursday July 13, 2023. The Canadian Cancer Society and Health Canada are reviewing the World Health Organization's classification of aspartame as "possibly carcinogenic." THE CANADIAN PRESS/Doug Ives

TORONTO — The Canadian Cancer Society and Health Canada are reviewing the World Health Organization's classification of aspartame as "possibly carcinogenic."

The WHO released findings on Thursday evening from two expert panels saying there is limited evidence that the artificial sweetener could be associated with liver cancer. 

But they also said that aspartame is still considered safe to consume at the current recommended daily limit. 

Health Canada and the WHO recommend the same daily limit of 40 milligrams of aspartame per kilogram of body weight.

Dr. David Ma, a professor of nutritional sciences at the University of Guelph, says a person weighing 70 kilograms would have to drink about 15 cans of diet pop a day to exceed that daily limit. 

The WHO is recommending further research on aspartame to determine more definitively whether or not it causes cancer. 

This report by The Canadian Press was first published July 14, 2023.

Canadian Press health coverage receives support through a partnership with the Canadian Medical Association. CP is solely responsible for this content.

The Canadian Press

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