How to protect your mind from ultra-processed food risks

New research has identified a concerning link between the consumption of ultra-processed foods and a decline in brain health.

This study, led by nutritional biochemist Barbara Cardoso from Monash University, focused on 2,192 dementia-free Australians aged between 40 and 70.

By analysing food questionnaires and cognitive tests, researchers explored how these industrially produced meals impact attention and long-term dementia risk.

The Impact on Focus and Risk

The findings indicate that for every 10 per cent increase in ultra-processed food intake, there is a measurable decrease in focus and a rise in dementia risk scores.

• Ultra-processed foods accounted for approximately 41 per cent of total energy intake across the group.
• A 10 per cent increase in these foods added 0.24 points to dementia risk scores.
• Higher intake was associated with lower educational attainment and obesity.

"To put our findings in perspective, a 10 percent increase in ultra-processed foods is roughly equivalent to adding a standard packet of chips to your daily diet," Cardoso says.

"In clinical terms, this translated to consistently lower scores on standardised cognitive tests measuring visual attention and processing speed."

Processing vs Nutrition

Interestingly, the study found that adhering to a Mediterranean diet did little to mitigate these effects if ultra-processed items were still consumed. This suggests the processing itself, rather than just a lack of nutrients, is the issue.

"Food ultra-processing often destroys the natural structure of food and introduces potentially harmful substances like artificial additives or processing chemicals," Cardoso explains.

"These additives suggest the link between diet and cognitive function extends beyond just missing out on foods known as healthy, pointing to mechanisms linked to the degree of food processing itself."

Please Note: This information is for educational purposes only and does not count as professional advice. Readers should always consult a qualified doctor regarding any questions about their health or a medical condition.