Ultra-processed food consumption linked to brain damage in Canadian study

ultra-processed foods brain damage vascular lesions MRI scans stroke risk

A study led by researchers from the Population Health Research Institute at McMaster University and Hamilton Health Sciences has linked high consumption of ultra-processed foods to increased brain damage in healthy adults. Published in JAMA Network Open, the research analyzed MRI scans from nearly 9,000 Canadians aged 35 to 69 who had no prior history of heart disease.

Findings revealed that individuals with the highest intake of ultra-processed foods—such as sugary cereals, soft drinks, packaged snacks, and instant noodles—were 40% more likely to exhibit tiny areas of brain damage, including silent infarcts and white matter changes. These alterations often produce no obvious symptoms but can serve as early warning signs for future strokes or memory problems.

The study also noted that high consumers tended to have higher levels of body fat and abdominal fat, which is linked to inflammation and vascular damage. Researchers observed a particularly strong connection between ultra-processed food consumption and brain changes among female participants. While the study shows a correlation, researchers noted it does not definitively establish cause and effect due to its observational nature.

Entities

Hamilton Health Sciences · JAMA Network Open · McMaster University · Population Health Research Institute · Russell J. de Souza

Claims

What the coverage asserts, and how many sources carry each claim.

[● 3 SOURCES] Ultra-processed foods include packaged snacks, sugary breakfast cereals, soft drinks, instant noodles, and frozen meals. www.biskotto.gr · seleo.gr
[● 3 SOURCES] The study was published in the medical journal JAMA Network Open. www.biskotto.gr · seleo.gr
[● 3 SOURCES] Brain alterations identified via MRI may be early warning signs for stroke or memory problems. www.biskotto.gr · seleo.gr
[● 3 SOURCES] High consumption of ultra-processed foods is linked to brain alterations. www.biskotto.gr · seleo.gr
[● 3 SOURCES] High consumption of ultra-processed foods is associated with increased abdominal fat. www.biskotto.gr · seleo.gr
[● 3 SOURCES] The study involved approximately 8,783 to 9,000 volunteers aged 35 to 69. www.biskotto.gr · seleo.gr
[● 3 SOURCES] Participants with the highest consumption had a 40% higher probability of brain alterations. www.biskotto.gr · seleo.gr