Mother wants child's ICU visit investigated alongside tonsil surgery deaths at Hamilton hospital
An Ontario mother is sharing her story after she says her daughter almost died following a tonsillectomy at McMaster Children’s Hospital.
The Canadian Cancer Society is recommending that people stay within existing daily limits of aspartame consumption and encouraging more studies on the artificial sweetener after the World Health Organization deemed it "possibly carcinogenic."
The classification "means that there's limited evidence suggesting that it may cause cancer in humans and that additional research is needed," said Elizabeth Holmes, director of health policy at the Canadian Cancer Society, in an interview on Friday.
Holmes said the society welcomes research proposals on aspartame and will consider funding them.
Two WHO-affiliated agencies conducted two independent reviews to assess health risks associated with consumption of aspartame, which is commonly found in diet beverages, gum and sugar-free sweet treats such as syrup or gelatin dessert.
In reviewing available studies in both humans and animals, the International Agency for Research on Cancer (IARC) and the Food and Agriculture Organization Joint Expert Committee on Food Additives (JECFA) found limited evidence that aspartame could be associated with a type of liver cancer.But the findings could not rule out the possibility that other variables might account for the link.
Better studies, including randomized controlled trials, are needed to determine more definitively whether or not aspartame causes cancer, the study summary said.
There was "no convincing evidence" to suggest current recommendations on safely eating or drinking aspartame should be changed, it said.
Health Canada and the WHO both recommend a daily limit of 40 mg of aspartame per kilogram of body weight.
A WHO news release breaks it down: since a can of diet soda contains about 200 -- 300 mg of aspartame, an adult who weighs 70 kg would need to consume more than nine to 14 cans per day to exceed that limit.
David Ma, a professor of nutritional sciences at the University of Guelph, said the daily aspartame consumption of most Canadians likely falls within that limit.
"Unfortunately, there are probably a few individuals drinking (above) that level. So those would be the ones that should be most concerned about their intake," Ma said.
In an emailed statement, Health Canada said it will review the research and "determine whether action is needed for aspartame in Canada based on the scientific data in the full reports."
The WHO has four classification levels for items assessed for their potential to cause cancer: carcinogenic to humans, probably carcinogenic to humans, possibly carcinogenic to humans, and not classifiable as to its carcinogenicity to humans.
Those levels are based on how strong the evidence is that something, including food, drink, chemicals and environmental hazards, is linked with cancer. The classification levels aren't a statement about the "degree of risk" of developing cancer. The risk often varies with the amount consumed or levels of exposure. The type of cancer the food or drink is linked to also varies.
Tobacco, alcohol and processed meat are among more than 120 items currently classified as carcinogenic on the WHO's website. There are more than 90 items listed as "probable" carcinogens, including red meat.
When it comes to "possible" carcinogens such as aspartame, more than 320 items are listed. They include many chemicals, such as chloroform and lead.
It's important to think of substances listed as carcinogenic, probably carcinogenic or possibly carcinogenic as "hazards" rather than "risks," Ma said.
For example, driving a car is inherently a hazard, he said. But the risk of injury is lowered by actions that we take.
"We accept that because overall, on a daily basis, millions and millions of people drive and the risk is relatively low because we put on our seat belt, we follow the rules of the road, we do not drive dangerously at high speeds," Ma said.
Similarly, aspartame is a "hazard" but "the level of risk is low" if we don't consume too much, he said.
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.
An Ontario mother is sharing her story after she says her daughter almost died following a tonsillectomy at McMaster Children’s Hospital.
The Department of National Defence confirmed the Canadian Armed Forces is tracking the Russian fleet of warships that reached Cuba on Wednesday.
The former owners of a home on Vancouver's west side have continued living in it despite selling it for nearly $4 million last June. Last week, they won a court case that will prevent the new owners from evicting them for at least a little while longer.
The Liberal government says changes to the capital gains tax will only affect less than one per cent of Canadians and generate nearly $20 billion in new revenue. We asked an economist how accurate that is.
Consumers may have many reasons to feel tip fatigue. But who loses out when we decide to tip less, or not at all? CTVNews.ca spoke with a few industry experts to find out how tipping works and who actually receives the money.
A lake in Alberta’s Rocky Mountains is highlighted on a list outlining the most beautiful ones in the world.
An Ontario Provincial Police officer is in stable condition after being shot during a search for a man wanted for questioning in a recent homicide near Timmins, Ont.
The Ottawa Police Service Hate and Bias Crime Unit is investigating after home security footage posted online sparked strong reaction from the community.
Transgender swimmer Lia Thomas failed in her challenge against rules that stop her from competing in elite women's races because judges ruled she did not have standing to bring the case.
Peggy's Cove, N.S., is one of the most famous locations in the Maritimes. Recent visitors were treated to more than just the iconic landmark.
Hundreds of fans lined up to meet the Trailer Park Boys in Dartmouth, N.S., Tuesday, as Ricky, Bubbles and Julian promoted their new brand of potato chips.
Car break-ins plague Canadians across the country, but instead of worrying about theft, a northern Ontario woman is cleaning up a big mess that she says will not be covered by insurance after a black bear broke into her Honda Civic and took a nap.
Members of a Hutterite colony in southern Alberta have potentially built the world's tallest structure made of Popsicle sticks.
A dog who spent the first three-and-a-half years of his life suffering and almost a year at a shelter has found his forever home, according to the BC SPCA.
In most families, ringing in a 100th birthday is a massive milestone. Minni Pelman’s family certainly thinks so – as they celebrate her 108th birthday in the park outside her building.
Showing off the latest purchase in his Eaton's collection, Corey Quintaine joked he is rebuilding the former flagship store that used to sit at 320 Portage Avenue one Facebook Marketplace purchase at a time.
After learning about food security at school, 11-year-old Violette Ferguson wants fresh eggs and to change the rules around chickens in the city.
An Ontario powerlifter caught a mild cold last year. Six days later, he was fighting for his life in the ICU.