FILE - In this June 5, 2014, file photo, a man makes a submarine sandwich with mortadella, cooked salami, ham, Genoa salami and sweet capicola at a delicatessen in Massachusetts. An international team of researchers is questioning the advice to limit red and processed meats, saying the link to cancer and heart disease is weak. Their conclusions were swiftly attacked by a group of prominent U.S. scientists who tried to stop publication of the research, arguing it sends the wrong message. (AP Photo/Elise Amendola, File)

How risky is eating red meat? New papers provoke controversy

New research says you probably don’t need to stop eating steak

Eating red meat is linked to cancer and heart disease, but are the risks big enough to give up burgers and steak?

A team of international researchers says probably not, contradicting established advice. In a series of papers published Monday, the researchers say the increased risks are small and uncertain and that cutting back likely wouldn’t be worth it for people who enjoy meat.

Their conclusions were swiftly attacked by a group of prominent U.S. scientists who took the unusual step of trying to stop publication until their criticisms were addressed.

The new work does not say red meat and processed meats like hot dogs and bacon are healthy or that people should eat more of them. The reviews of past studies generally support the ties to cancer, heart disease and other bad health outcomes. But the authors say the evidence is weak, and that there’s not much certainty meat is really the culprit, since other diet and lifestyle factors could be at play.

Most people who understand the magnitude of the risks would say “Thanks very much, but I’m going to keep eating my meat,” said co-author Dr. Gordon Guyatt of McMaster University in Canada.

It’s the latest example of how divisive nutrition research has become, with its uncertainties leaving the door open for conflicting advice. Critics say findings often aren’t backed by strong evidence. Defenders counter that nutrition studies can rarely be conclusive because of the difficulty of measuring the effects of any single food, but that methods have improved.

“What we need to do is look at the weight of evidence — that’s what courts of law use,” said Dr. Walter Willett, a professor of nutrition at Harvard University who was among those calling for the papers’ publication to be postponed.

READ MORE: Calls to eat more plants, less meat also in line with Canada’s Food Guide

Willett, who has led studies tying meat to bad health outcomes, also said the reviews do not consider the particularly pronounced benefits of switching from red meat to vegetarian options.

The journal, Annals of Internal Medicine, defended the work and said the request to have it pulled before publication is not how scientific discourse is supposed to happen. Guyatt called the attempt to halt publication “silly.”

In the papers, the authors sought to gauge the potential impact of eating less meat, noting the average of two to four servings a week eaten in North America and Western Europe. They said the evidence for cutting back wasn’t compelling. For example, they found that cutting three servings of red meat a week would result in seven fewer cancer deaths per 1,000 people.

Based on the analyses, a panel of the international researchers said people do not have to cut back for health reasons. But they note their own advice is weak and that they didn’t take into account other factors, such as animal welfare and the toll meat production has on the environment.

There was dissent even among the authors; three of the 14 panelist said they support reducing red and processed meats. A co-author of one review is also among those who called for a publication delay.

Those who pushed to postpone publication also questioned why certain studies were included or excluded in the reviews. Harvard’s Dr. Frank Hu also noted that about a third of American adults eat at least one serving of red meat a day. He said the benefits of cutting back would be larger for those who eat such high amounts.

Still, other researchers not involved in the reviews have criticized nutrition science for producing weak and conflicting findings. Dr. John Ioannidis, a professor of medicine at Stanford University, said such advice can distract from clearer, more effective messages, such as limiting how much we eat.

As for his own diet, Guyatt said he no longer thinks red or processed meats have significant health risks. But he said he still avoids them out of habit, and for animal welfare and environmental reasons.

VIDEO: Plant-based burgers may not be as healthy as they seem

___

The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education. The AP is solely responsible for all content.

Candice Choi, The Associated Press


Like us on Facebook and follow us on Twitter.

Just Posted

New chair ready to go for Sasquatch Mountain Resort opening

The Yeti Cruiser will replace the two-person Skyline chair at the Hemlock Valley ski resort

Proposal for supportive housing decision now rests with Hope council

Plan would be Hope’s first supportive housing project, through BC Housing

Snowfall warning issued for Coquihalla Highway

Up to 25 cm of snow is expected to fall in the region by Thursday

Holiday home turns Agassiz Ave into festive wonderland

Dean Sims has been decking the halls for Christmas for the last 18 years

Christmas Seals campaign helps British Columbians breathe easier

One in five Canadians have lung disease such as COPD or asthma

VIDEO: Octopus, bald eagle battle after bird ‘bites off more than it can chew’ in B.C. waters

B.C. crew films fight between the two feisty animals in Quatsino off north Vancouver Island

Raptors fans show Kawhi the love in his return to Toronto

Leonard receives championship ring, leads new club to win

Process to identify those killed in Gabriola plane crash could take days

Canadian flight museum suggests Alex Bahlsen of Mill Bay died in Tuesday’s crash

‘Honest mistake:’ RCMP says B.C. cannabis shop can keep image of infamous Mountie

Sam Steele wearing military, not RCMP uniform in image depicted in Jimmy’s Cannabis window

B.C. conservation officers put down fawn blinded by pellet gun on Vancouver Island

Young deer found near construction site in Hammond Bay area in Nanaimo, B.C.

Laid-off forest workers converge on B.C. legislature

Loggers call for action on strike, provincial stumpage

B.C. guide fined $2K in first conviction under new federal whale protection laws

Scott Babcock found guilty of approaching a North Pacific humpback whale at less than 100 metres

Feds urge Air Canada to fix booking problems as travel season approaches

The airline introduced the new reservation system more than three weeks ago

Almost 14,000 Canadians killed by opioids since 2016: new national study

17,000 people have been hospitalized for opioid-related poisoning

Most Read