Up to 14 cans of diet drink a day considered safe for 70kg person, as WHO says sweetener is ‘possibly’ carcinogenic in larger amounts
So maybe the huge worry people had after the news that WHO would classify it as cancerous was a little too much. I think the media could have reported on it in a bit more responsible way.
It's literally in the first sentence of the article. "A widely used artificial sweetener deemed a “possible” cause of cancer is safe in limited quantities, such as consuming fewer than nine to 14 cans of soft drink a day, experts have said."