Ultraprocessed Foods and the Risk of Cognitive Impairment and Dementia in Older US Adults: 2013-2020 Health and Retirement Study.

June 3, 2026

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Key Points

This research aims to determine the relationship between ultraprocessed foods and the risk of cognitive impairment and dementia in older adults.
Utilized data from the 2013-2020 Health and Retirement Study.
Analyzed dietary patterns related to ultraprocessed food consumption and cognitive outcomes in older US adults.
Employed statistical methods to assess the risk factors related to cognitive impairment.
Higher intake of ultraprocessed foods was associated with increased risk of cognitive impairment (HR 1.5, 95% CI 1.2-1.8, p=0.004).
Increased consumption linked to a higher incidence of dementia (OR 2.0, 95% CI 1.3-3.0, p=0.001).
Findings suggest significant concern regarding dietary habits and brain health.

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Shows links between ultraprocessed foods and cognitive impairment in older adults, indicating health risks associated with diet.

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Lee et al. (2026) studied this question.

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