Study Links High Intake of Ultra-Processed Foods to Silent Brain Injury in Midlife

A cross-sectional study published in JAMA Network Open suggests a significant association between high consumption of ultra-processed foods and early cerebrovascular injury in middle-aged adults, detectable years before stroke or cognitive symptoms appear. The research, involving over 8,700 Canadian adults, found that those in the highest quartile of ultra-processed food intake had approximately 40% greater odds of MRI-defined vascular brain injury compared to those with the lowest intake. This association persisted even after adjusting for demographic, lifestyle, and cardiometabolic factors, and appeared stronger in women.