Cited by 196Dementia and Cognitive Impairment ResearchNutritional Studies and DietAlzheimer's disease research and treatments

Dietary niacin and the risk of incident Alzheimer’s disease and of cognitive decline

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Morris, M C·2004·Journal of Neurology, Neurosurgery & Psychiatry

Abstract

BACKGROUND: Dementia can be caused by severe niacin insufficiency, but it is unknown whether variation in intake of niacin in the usual diet is linked to neurodegenerative decline. We examined whether dietary intake of niacin was associated with incident Alzheimer's disease (AD) and cognitive decline in a large, prospective study. METHODS: This study was conducted in 1993-2002 in a geographically defined Chicago community of 6158 residents aged 65 years and older. Nutrient intake was determined by food frequency questionnaire. Four cognitive tests were administered to all study participants at 3 year intervals in a 6 year follow up. A total of 3718 participants had dietary data and at least two cognitive assessments for analyses of cognitive change over a median 5.5 years. Clinical evaluations were performed on a stratified random sample of 815 participants initially unaffected by AD, and 131 participants were diagnosed with 4 year incident AD by standardised criteria. RESULTS: Energy adjusted niacin intake had a protective effect on development of AD and cognitive decline. In a logistic regression model, relative risks (95% confidence intervals) for incident AD from lowest to highest quintiles of total niacin intake were: 1.0 (referent) 0.3 (0.1 to 0.6), 0.3 (0.1 to 0.7), 0.6 (0.3 to 1.3), and 0.3 (0.1 to 0.7) adjusted for age, sex, race, education, and ApoE e4 status. Niacin intake from foods was also inversely associated with AD (p for linear trend = 0.002 in the adjusted model). In an adjusted random effects model, higher food intake of niacin was associated with a slower annual rate of cognitive decline, by 0.019 standardised units (SU) per natural log increase in intake (mg) (p = 0.05). Stronger associations were observed in analyses that excluded participants with a history of cardiovascular disease (beta = 0.028 SU/year; p = 0.008), those with low baseline cognitive scores (beta = 0.023 SU/year; p = 0.02), or those with fewer than 12 years' education (beta = 0.035 SU/year; p = 0.002) CONCLUSION: Dietary niacin may protect against AD and age related cognitive decline.

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Research works printed but not linked: 4

  1. Morris MC, Evans DA, Bienias JL, et al. Dietary intake of antioxidant nutrients and the risk of incident Alzheimer's disease in a biracial community study. JAMA 2002;287:3230-7.
  2. Willett WC, Stampfer MJ. Total energy intake: implciations for epidemiologic analysis. Am J Epidemiol 1986;124:17-27.
  3. Welsh KA, Butters N, Mohs R, et al. CERAD Part V. A normative study of the neuropsychological battery. Neurology 1994;44:609-14.
  4. Bienias JL. Replicate-based variance estimation in a SAS macro. Proceedings of the Fourteenth Annual Meeting of the NorthEast SAS Users Group, Statistics, Data Analysis, and Econometrics Section, 2001.

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Authors
Morris, M. C.
Affiliations
Centers for Disease Control and Prevention (US)
Corresponding author
Morris, M C
Venue
Journal of Neurology, Neurosurgery & Psychiatry
Publisher
BMJ
Published
2004-08-01
Volume
75
Issue
8
Pages
1093-1099
ISSN
0022-3050 (ISSN-L)
OpenAlex
W1982407680
Cited by
196
References
59
Citations by year
2026: 7 · 2025: 7 · 2024: 13 · 2023: 15 · 2022: 9 · 2021: 9 · 2020: 16 · 2019: 14 · 2018: 7 · 2017: 12 · 2016: 8 · 2015: 3 · 2014: 3 · 2013: 8 · 2012: 7
FWCI
6.47
Type
journal article
Language
en
Open access
Locations
  • Journal of Neurology Neurosurgery & Psychiatry (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute on Aging (R01AG013170, AG13170, AG-11101, R01AG011101)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
nicotinic acid, dietary intake, Alzheimer's disease, cognitive decline, dementia risk, older adults, neuroprotection, cardiovascular disease, educational attainment, APOE ε4, food frequency questionnaire, prospective cohort, random effects models, linear trend analysis, relative risk, niacin supplementation
MeSH terms
Aged, Alzheimer Disease, Hypolipidemic Agents, Cognition Disorders, Diet, Female, Humans, Male, Niacin, Nutritional Status, Prospective Studies, Risk Factors

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