复合维生素的
安慰剂
医学
随机对照试验
剑桥神经心理学测试自动电池
情景记忆
召回
老年学
认知
神经心理学
心理学
物理疗法
精神科
内科学
工作记忆
维生素
空间记忆
病理
认知心理学
替代医学
作者
Lok‐Kin Yeung,Daniel M. Alschuler,Melanie M. Wall,Heike Luttmann‐Gibson,Trisha Copeland,Christiane Hale,Richard P. Sloan,Howard D. Sesso,JoAnn E. Manson,Adam M. Brickman
标识
DOI:10.1016/j.ajcnut.2023.05.011
摘要
Maintenance of cognitive abilities is of critical importance to older adults, yet few effective strategies to slow cognitive decline currently exist. Multivitamin supplementation is used to promote general health; it is unclear whether it favorably affects cognition in older age.To examine the effect of daily multivitamin/multimineral supplementation on memory in older adults.The COcoa Supplement and Multivitamin Outcomes Study Web (COSMOS-Web) ancillary study (NCT04582617) included 3562 older adults. Participants were randomly assigned to a daily multivitamin supplement (Centrum Silver) or placebo and evaluated annually with an Internet-based battery of neuropsychological tests for 3 y. The prespecified primary outcome measure was change in episodic memory, operationally defined as immediate recall performance on the ModRey test, after 1 y of intervention. Secondary outcome measures included changes in episodic memory over 3 y of follow-up and changes in performance on neuropsychological tasks of novel object recognition and executive function over 3 y.Compared with placebo, participants randomly assigned to multivitamin supplementation had significantly better ModRey immediate recall at 1 y, the primary endpoint (t(5889) = 2.25, P = 0.025), as well as across the 3 y of follow-up on average (t(5889) = 2.54, P = 0.011). Multivitamin supplementation had no significant effects on secondary outcomes. Based on cross-sectional analysis of the association between age and performance on the ModRey, we estimated that the effect of the multivitamin intervention improved memory performance above placebo by the equivalent of 3.1 y of age-related memory change.Daily multivitamin supplementation, compared with placebo, improves memory in older adults. Multivitamin supplementation holds promise as a safe and accessible approach to maintaining cognitive health in older age. This trial was registered at clinicaltrials.gov as NCT04582617.
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