Particle.news
Download on the App Store
7 ARTICLES
·
last wk.

Ultra-Processed Foods Linked to Lower Attention and Higher Dementia-Risk Scores in Midlife Study

An Australian study in adults ages 40 to 70 reports small links that raise concern without proving cause.

Adding ultraprocessed foods to an otherwise healthy meal may still contribute to dementia.
Image
Image
Image

Overview

  • Researchers studied 2,192 dementia-free adults and found that every 10% increase in ultra-processed food intake matched a 0.05-point drop in attention and a 0.24-point rise on a modifiable dementia-risk score.
  • The analysis used food questionnaires and cognitive tests of attention and processing speed, and it found no association with memory performance.
  • The links remained after accounting for Mediterranean diet adherence and body mass index, though the standard CAIDE dementia-risk score lost significance while a modified, not yet validated version stayed associated.
  • Ultra-processed foods made up about 41% of total calories in the sample, were more common in men and younger participants, and included items like soft drinks, chips, processed meats, ready meals, and dairy desserts.
  • Authors and outside clinicians urged longer-term and intervention studies using biomarkers, gut microbiome data, and brain imaging to test mechanisms and to inform how processing should factor into dietary guidance.