Eating processed red meat increases dementia risk, study reveals

Although the dementia It is a disease more common in older adults or the elderly, hundreds of thousands of people are diagnosed with early dementia each year. Several factors could point to having increased risk of suffering from this disease, among which something so common in diet like red meat.

The largest and most robust dementia study to date was conducted in 2023, analyzing data collected on 356,052 people under the age of 65 in the UK. The results, published by the magazine JAMA Neurology and collected by the portal ScienceAlertpointed to a series of factors, among which were elements related to the lifestyle and health.

Among these factors, stood out a low socioeconomic level, social isolation, hearing impairmentstrokes, diabetes, as well as vitamin deficiency or excessive alcohol consumption.

Now, new research published this January 15 in the medical journal of the American Academy of Neurology, Neurologyemphasizes diet, particularly processed red meat, such as sausages, bologna or bacon, as a factor that multiplies the risk of developing dementia throughout life.

An observational study

The research, carried out jointly by the hospital network Brigham and Women’s Hospital in Boston, in the United States, concludes that Higher consumption of red meat, particularly processed red meat, is associated with a higher risk of developing dementia and poorer cognition.

The researchers, led by Yuhan Li, of the Harvard University Department of Epidemiologyindicate that their objective was to examine the association between red meat intake and multiple cognitive outcomes, since previous studies had shown inconsistent associations between these two parameters. However, they detail that the research is solely observational, so a direct cause and effect relationship cannot be established.

All in all, a total of 133,771 people were measured in this study over 43 years, with an average age of 49 years at the beginning of the study. Of the initial group, 11,173 people developed dementia.

Swap red meat for nuts

The results indicate that participants with an intake of processed red meat greater than 25% per day (approximately two slices of bacon, one and a half of bologna or a hot dog), compared to those who consumed only 10% per day, had 13% increased risk of dementia.

The researchers point out that replacing red meat processed by a diet rich in nuts and legumes It was associated with a 19% lower risk of dementia in the patients analyzed.

Experts, however, point out that we must also consider clinical, demographic and lifestyle factors, such as socioeconomic level and family history of dementia to assess all the results. They also insist that more research would be needed to evaluate, for example, how general these findings are in populations of diverse ethnic origins.

Connect diet and brain health

For Dong Wang, of the Brigham and Women’s Hospital network in Boston and one of the lead authors of the study, “dietary guidelines tend to focus on reducing the risks of chronic diseases such as heart disease and diabeteswhile cognitive health is analyzed less frequently, despite being linked to these diseases,” according to a note.

“We hope our results encourage greater consideration of the connection between diet and brain health,” he adds.

The study defines processed red meat as bacon, hot dogs, sausages, salami, bologna and other processed meat products. While the unprocessed was set as beef, pork, lamb and hamburger.

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