Ultra-Processed Meats and Sugary Drinks Linked to Increased Risk of Cognitive Decline

A new study reveals that higher consumption of ultra-processed meats and sugary beverages is associated with a significantly increased risk of cognitive impairment, including potential links to Alzheimer’s disease, adding to growing concerns about the long-term health effects of these foods.

Researchers at Virginia Tech tracked the cognitive health of 4,750 U.S. residents aged 55 and older over a seven-year period, from 2014 to 2020, using data from the University of Michigan Health and Retirement Study. The study, published in the American Journal of Clinical Nutrition, found that individuals who consumed at least one additional daily serving of ultra-processed animal products had a 17 percent higher risk of developing cognitive issues. Those consuming an extra serving of sugar-sweetened beverages daily showed a 6 percent increase in risk.

Interestingly, the research indicated that overall consumption of ultra-processed foods (UPFs) did not demonstrate a significant link to cognitive decline, suggesting that specific categories within UPFs are more detrimental than others. “There are things that you can change,” said Brenda Davy, professor of human nutrition, foods, and exercise at Virginia Tech and a study co-author. “It’s moderation and being reasonable and balanced in your dietary choices.” The findings build on existing research highlighting the negative impacts of UPFs on physical health, including obesity, cardiovascular disease, and type 2 diabetes – conditions that can also contribute to cognitive decline. You can learn more about the dangers of processed foods at the Centers for Disease Control and Prevention.

The study highlighted that approximately 65 percent of foods and 38 percent of beverages purchased by U.S. households in 2020 were classified as ultra-processed, characterized by high levels of industrial processing and artificial additives. Researchers suggest that providing cooking skills and education could be a crucial intervention to help individuals make healthier dietary choices and protect their brain health.

Researchers plan to continue investigating the specific mechanisms by which these foods impact cognitive function and explore potential preventative strategies.