October 21, 2026

@michaelokun

Could ultraprocessed foods be damaging our brains before we notice symptoms? This new study published in JAMA Network Open resonates with me because it raises an important question about brain health: could the foods we eat today be contributing to brain injury long before we notice problems with memory or thinking? Researchers examined 8,783 middle-aged adults in Canada and found that those consuming the most ultraprocessed foods had 40% higher odds of MRI-detected vascular brain injury compared with those consuming the least. These injuries included silent strokes and changes in the brain's white matter, which can develop without obvious symptoms. Higher consumption was also associated with greater body fat and abdominal fat. Interestingly, the researchers did not find significant differences in cognitive performance, suggesting that changes on brain imaging may be detectable before changes on cognitive testing. The study was observational and cannot prove that ultraprocessed foods caused these injuries, and some findings were sensitive to how food intake was measured. What resonates with me most is the opportunity to think about prevention earlier in life. We spend so much time treating brain diseases after symptoms appear, but perhaps we should be paying much closer attention to what we put on our plates decades before those symptoms emerge. Protecting our brains may begin long before we ever enter a neurologist's office. https://cutt.ly/kyRulqL4