A 10 percent daily increase in ultra-processed food consumption was associated with a higher risk of dementia, lower attention span, and more than 30 adverse health outcomes.
A new study has found that increased consumption of ultra-processed foods may be linked to a higher risk of dementia.
The study, done by Monash University in Australia and published in Alzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring (DADM), found that a 10 percent daily increase in ultra-processed food consumption was associated with a higher risk of dementia, lower attention span, and more than 30 adverse health outcomes.
Researchers said even a relatively small increase in consumption could have measurable effects. The study measured daily food intake in Australia and found that a 10 percent increase amounted to just 150 grams per day.
“To put our findings in perspective, a 10% increase in UPFs is roughly equivalent to adding a standard packet of chips to your daily diet,” said lead author Dr. Barbara Cardoso, according to the National Post.
Ultra-processed foods are defined in the study as “industrial formulations composed of refined ingredients and cosmetic additives with minimal whole food content.” These foods make up half of the caloric intake of individuals in the US. The study further warned that even having a healthy diet will not offset the effects of these foods.
As part of his Make America Healthy Again initiative, Health and Human Services Secretary Robert F. Kennedy Jr has spoken extensively about reducing ultra-processed foods as part of efforts to address chronic disease. Earlier this year, the Trump administration released the Dietary Guidelines for Americans, 2025–2030, which called for high prioritizing of high-quality protein, healthy fats, fruits, vegetables, and whole grains, while avoiding highly processed foods and refined carbohydrates.
“These Guidelines return us to the basics,” Secretary Kennedy said. “American households must prioritize whole, nutrient-dense foods—protein, dairy, vegetables, fruits, healthy fats, and whole grains—and dramatically reduce highly processed foods. This is how we Make America Healthy Again.”
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