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Cognitive findings of an exploratory trial of docosahexaenoic acid and lutein supplementation in older women

Johnson, Elizabeth J., Mcdonald, Karen, Caldarella, Susan M., Chung, Hae-yun, Troen, Aron M., Snodderly, D. Max·2008·Nutritional Neuroscience

Abstract

INTRODUCTION: Low dietary intake of docosahexaenoic acid (DHA) and/or foods rich in lutein may be associated with increased risk of cognitive decline in the elderly. SUBJECTS AND METHODS: The cognitive benefit of DHA and lutein in unimpaired elder women was explored in the context of a 4-month, double-blind, intervention trial of DHA and lutein supplementation for eye health. Forty-nine women (aged 60-80 years) were randomized to receive DHA (800 mg/day; n = 14), lutein (12 mg/day; n = 11), a combination of DHA and lutein (n = 14) or placebo (n = 10). Subjects underwent cognitive tests measuring verbal fluency, memory, processing speed and accuracy, and self-reports of mood at randomization and upon completion of the trial. RESULTS: Following supplementation, verbal fluency scores improved significantly in the DHA, lutein, and combined treatment groups (P < 0.03). Memory scores and rate of learning improved significantly in the combined treatment group (P < 0.03), who also displayed a trend toward more efficient learning (P = 0.07). Measures of mental processing speed, accuracy and mood were not affected by supplementation. CONCLUSIONS: These exploratory findings suggest that DHA and lutein supplementation may have cognitive benefit for older adults.

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Metadata

Authors
Johnson, E. J., Mcdonald, K., Caldarella, S. M., Chung, H.-Y., Troen, A. M., & Snodderly, D. M.
Venue
Nutritional Neuroscience
Published
2008-04
Volume
11
Issue
2
Pages
75-83
ISSN
  • 1028-415X (ISSN-L)
  • 1476-8305
OpenAlex
W2030711203
Cited by
291
References
7
FWCI
6.19
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Cognitive findings of an exploratory trial of docosahexaenoic acid and lutein supplementation in older women. https://app.cochat.ai/papers/10.1179/147683008x301450
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Johnson, E. J., Mcdonald, K., Caldarella, S. M., Chung, H.-Y., Troen, A. M., & Snodderly, D. M. (2008). Cognitive findings of an exploratory trial of docosahexaenoic acid and lutein supplementation in older women. Nutritional Neuroscience. https://doi.org/10.1179/147683008x301450

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