Baton Rouge Researcher Examines Impact of Ultraprocessed Foods on Cognitive Aging

The review consolidates existing research on ultraprocessed foods, cognitive aging, and brain health, analyzing both human studies and basic research to explore potential dietary influences on the aging brain.

Ultraprocessed foods, which are prevalent in contemporary diets, are produced through industrial methods and typically contain refined ingredients, added sugars, fats, sodium, and various additives. Heightened consumption of these foods has been associated with various health issues, leading scientists to consider their potential impact on brain health.

Carmichael's review discusses several mechanisms through which diet may affect the aging brain, including metabolism, inflammation, and vascular health. It also examines data linking the intake of ultraprocessed foods to cognitive performance and dementia, emphasizing that while correlations exist, causation has yet to be established.

Some studies indicate that individuals consuming larger amounts of ultraprocessed foods may experience worse cognitive outcomes; however, researchers continue to investigate how much of this is due directly to these foods versus other influences like overall dietary patterns or lifestyle choices.

"A lot of people inside and outside of science are worried about the effects that food processing and artificial food additives might have on health, but it is hard to know what reported health effects are real and which ones are not," Carmichael noted. He highlighted that the review allows for a comprehensive examination of the evidence suggesting ultraprocessed foods could impact brain health.

Carmichael serves as the Director of Biomedical Imaging at Pennington Biomedical, where his research interests include the interplay between health behaviors, metabolic health, and Alzheimer's disease.