Cohort study2024

Associations Between Ultra-Processed Food Consumption and Adverse Brain Health Outcomes

Bhave VM, Oladele CR, Ament Z, Kijpaisalratana N, Jones AC, Couch CA, Patki A, Garcia Guarniz AL, Bennett A, Crowe M, Irvin MR, Kimberly WT

Neurology · 30 citations

Review labels

Food frequency questionnaireNo stated lifestyle adjustment

Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.

How it was studied

Design
Cohort study (indexed by PubMed)
Studied in
People
Main outcome
Clinical events such as disease or death
Intake measured by
Food frequency questionnaire

Who paid for it

Funding
Independent funding
Government
National Institutes of Health
Government
National Institute on Aging
Government
National Heart, Lung, and Blood Institute
Government
National Institute of Neurological Disorders and Stroke
Government
National Center for Advancing Translational Sciences
Government
NCATS NIH HHS
Grants
National Center for Advancing Translational Sciences (UL1TR001863Ð); National Institute of Neurological Disorders and Stroke (NS099209); National Institute of Neurological Disorders and Stroke (R01 NS099209); National Heart, Lung, and Blood Institute (K01HL145347); National Institutes of Health (R01 NS099209)

Based on 6 listed funder(s).

Publication

Published
2024-05-22 · Neurology · vol. 102 · issue 11 · p. e209432
Publisher
Lippincott Williams & Wilkins
Cited
44 citations · more than 100% of similar papers · 16.7× the field average
Impact
Top 10% most cited in its field
References
46 works
Access
Open access (repository copy)
Research areas
Consumer Attitudes and Food Labeling · Nutritional Studies and Diet · Nutrition, Genetics, and Disease
Keywords
Consumption (sociology), Environmental health, Food consumption, Medicine, Adverse effect, Internal medicine, Economics, Agricultural economics
MeSH
humans, incidence, risk factors, cohort studies, prospective studies, diet, mediterranean, food handling, adult, aged, middle aged, united states, female, male, stroke, fast foods, cognitive dysfunction, dietary approaches to stop hypertension, white people, black or african american, food, processed

12 authors

  • Varun M. Bhave
  • Carol Oladele
  • Zsuzsanna Ament
  • Naruchorn Kijpaisalratana
  • Alana C Jones
  • Catharine A. Couch

Abstract

Background and objectives

Ultra-processed foods (UPFs) are linked to cardiometabolic diseases and neurologic outcomes, such as cognitive decline and stroke. However, it is unclear whether food processing confers neurologic risk independent of dietary pattern information. We aimed to (1) investigate associations between UPFs and incident cognitive impairment and stroke and (2) compare these associations with other commonly recommended dietary patterns in the REasons for Geographic and Racial Differences in Stroke study. This prospective, observational cohort study enrolled Black and White adults in the United States from 2003 to 2007.

Methods

The NOVA system was used to categorize items from a baseline food frequency questionnaire according to the level of processing. Participants with incomplete or implausible self-reported dietary data were excluded. Consumption for each category (grams) was normalized to total grams consumed. Scores quantifying adherence to a Mediterranean, Dietary Approaches to Stop Hypertension (DASH), and Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) diet were also calculated. Incident cognitive impairment was defined using performance relative to a normative sample on memory and fluency assessments. Incident stroke was identified through adjudicated review of medical records.

Results

The cognitive impairment cohort (n = 14,175) included participants without evidence of impairment at baseline who underwent follow-up testing. The stroke cohort (n = 20,243) included participants without a history of stroke. In multivariable Cox proportional hazards models, a 10% increase in relative intake of UPFs was associated with higher risk of cognitive impairment (hazard ratio [HR] = 1.16, 95% CI 1.09-1.24, p = 1.01 × 10-5) and intake of unprocessed or minimally processed foods with lower risk of cognitive impairment (HR = 0.88, 95% CI 0.83-0.94, p = 1.83 × 10-4). Greater intake of UPFs (HR = 1.08, 95% CI 1.02-1.14, p = 1.12 × 10-2) and unprocessed or minimally processed foods (HR = 0.91, 95% CI 0.86-0.95, p = 2.13 × 10-4) were also associated with risk of stroke in multivariable Cox models. The effect of UPFs on stroke risk was greater among Black than White participants (UPF-by-race interaction HR = 1.15, 95% CI 1.03-1.29, p = 1.50 × 10-2). Associations between UPFs and both cognitive impairment and stroke were independent of adherence to the Mediterranean, DASH, and MIND diets.

Discussion

Food processing may be important to brain health in older adults independent of known risk factors and adherence to recommended dietary patterns.

Abstract via Europe PMC. Copyright remains with the authors or publisher.

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