Vegetarians have long argued that eating meat is harmful to our health, but a new study is flipping that assumption on its head.

For decades, health-conscious individuals have been told: eat less meat—especially red meat—if you want to live longer! The World Health Organisation (WHO) even went so far as to classify processed red meat in the same cancer-causing category as cigarettes.

Study examined 16,000 adults

But it might be time to rewrite the rules of healthy eating, according to a LADbible article. A brand-new, peer-reviewed study presents findings that completely reverse what we’ve long believed. Researchers at McMaster University recently analysed the eating habits of 16,000 adults, focusing on how much protein they consumed from animal and plant sources, and how that correlated with mortality risks.

The results surprised even the researchers themselves: the study found no evidence whatsoever that higher intake of animal-derived protein leads to an increased risk of premature death. In fact, participants who consumed more animal-based protein had lower mortality rates from cancer.

Better-informed dietary decisions

Professor Stuart Phillips, head of the department at McMaster University and lead supervisor of the study, emphasised: “There are a lot of misconceptions about protein—how much we should eat, where it should come from, and what its long-term health impacts are. This study gives us a clearer understanding of reality, which is critical for those looking to make informed, science-based decisions about their diets.”

The researchers used state-of-the-art statistical tools, including methods from the National Cancer Institute (NCI) and the advanced multivariable Markov chain Monte Carlo model (MCMC), to accurately estimate participants’ long-term protein intake.

“It was essential that we apply the strictest gold-standard methodologies to analyse dietary habits and mortality risks,” Phillips said. He added: “These tools allowed us to account for daily fluctuations in protein intake, offering a more realistic view of people’s eating patterns.”

Meat consumption may support a healthy Life

Yanni Papanikolaou, lead author of the study, also weighed in on the findings: “When we combine observational data like this with results from clinical trials, the takeaway is clear: both animal and plant protein sources can support a healthy, long life.”

It’s important to note that this was an observational study and therefore does not prove causation. Still, researchers say the findings are highly valuable and reinforce the idea that animal-based proteins are not only not harmful but may actually help in maintaining good health.

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