Higher intake of ultra‑processed foods was associated with small, MRI‑detected brain changes that often go unnoticed, and may precede stroke or future memory problems, according to Fox News’ report on a Canadian study published in JAMA Network Open.
What the scans found
Fox News, citing Medical Xpress, reported that researchers examined magnetic resonance imaging (MRI) scans from about 9,000 participants and found small areas of brain damage were more common among people who consumed large amounts of ultra‑processed foods such as soft drinks, packaged snacks and sugary breakfast cereals. Those with the highest intake were 40% more likely to show these brain changes, which may not produce obvious symptoms.
Who was studied
The study included adults ages 35 to 69. First author Russel J. de Souza of the Population Health Research Institute (PHRI) of McMaster University and Hamilton Health Sciences said the findings were unexpected because “usually, this kind of damage is associated with conditions we hear about and treat at a much older age,” according to Medical Xpress as quoted by Fox News. De Souza also noted the study focused on “middle‑aged Canadians who had no heart problems and reported no other health concerns.”
Key differences by sex and body fat
Fox News reported an overall stronger link among women: those in the highest consumption group had nearly twice the likelihood of exhibiting signs of brain damage compared with women in the lowest group. Participants who ate the most ultra‑processed foods also had more total body fat and visceral fat, which is associated with various health concerns.
Why it matters
Senior author Sonia Anand, a senior scientist at PHRI, said, “Our findings suggest that the link between diet and brain health may be detectable before people experience noticeable problems with memory or thinking,” according to Fox News’ report. The outlet also noted that these brain changes can be early warning signs in the years before a stroke or memory issues appear.
Context on ultra‑processed foods
The Centers for Disease Control and Prevention (CDC) describes ultra‑processed foods as often tasty but frequently lacking fiber, vitamins and minerals, while containing higher amounts of sodium, saturated fats and added sugars, Fox News reported. The outlet also cited a report estimating ultra‑processed foods account for about 55% of Americans’ daily calories.
Attribution
Details above are drawn from Fox News’ coverage of a study published in JAMA Network Open, with quotations attributed to Medical Xpress as cited by Fox News.
