SynthesisThe American journal of clinical nutrition2024
Effect of multivitamin-mineral supplementation versus placebo on cognitive function: results from the clinic subcohort of the COcoa Supplement and Multivitamin Outcomes Study (COSMOS) randomized clinical trial and meta-analysis of 3 cognitive studies within COSMOS.
Synthesis in The American journal of clinical nutrition, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 26 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
COcoa Supplement and Multivitamin Outcomes Study
COcoa Supplement and Multivitamin Outcomes Study-Mind
COSMOS Web: Investigating the Effects of Cocoa Flavanol on Cognition Assessed Online
Who cites it
26 citing papers in PubMed, 31 citations in OpenAlex.
- Effects of daily multivitamin-multimineral supplementation on metabolomic profiles: 2-year findings from the COSMOS randomized clinical trial.GeroScience · 2026Trial
- Effects of daily multivitamin-multimineral and cocoa extract supplementation on epigenetic aging clocks in the COSMOS randomized clinical trial.Nature medicine · 2026Trial
- Effects of cocoa extract supplementation and multivitamin/multimineral supplements on self-reported fractures in the Cocoa Supplement and Multivitamins Outcomes Study randomized clinical trial.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2025Trial
- Relationships of B12 and Homocysteine with Outcomes in the SURE-PD, SURE-PD3, and STEADY-PDIII Trials.Journal of Parkinson's disease · 2024Trial
- PROMETHEUS clinical trial protocol: tailoring healthy ageing with lifestyle and nutraceuticals.GeroScience · 2026Article
- Micronutrients and omega-3 PUFAs to promote healthy ageing: informing a physiology-based complementation strategy.GeroScience · 2026Review
- Healthy Diet for Healthy Minds: Insights from Recent Epidemiological Studies.Current nutrition reports · 2026Review
- Nourish the mind: protocol for an umbrella review on nutrients and bioactive food components supporting brain health across the lifespan.Systematic reviews · 2026Article
- Emerging Patterns in Dietary Supplement Use Among US Adults, 1999-2023.JAMA network open · 2026Article
- Consumer-Relevant Endpoints in Nutritional Supplement Research: A Case of Multivitamin and Mineral Supplements.Current developments in nutrition · 2026Review
- Dietary Polyphenols in Non-Communicable Chronic Diseases: Neuro-Enteric Mechanisms, Multi-Omics Biomarkers and Translational Opportunities.Food science & nutrition · 2026Review
- Inflammaging and the role of micronutrients as immunomodulators: a pathway to healthy aging.Immunity & ageing : I & A · 2026Review
- A to Z of Health: An Evidence-Based Narrative Review of Multivitamin-Multimineral and Nutraceutical Supplementation.Cureus · 2026Review
- Dietary Patterns and Indicators of Cognitive Function.JAMA neurology · 2026Article
- Multivitamins and cognitive health in older adults: bridging evidence, gaps, and controversies - a comprehensive narrative review.Annals of medicine and surgery (2012) · 2026Review
- The role of multivitamin and mineral supplements in supporting health and well-being: a retrospective cross-sectional study in Taiwan.Journal of health, population, and nutrition · 2025Article
- Role of Micronutrient Supplementation in Promoting Cognitive Healthy Aging in Latin America: Evidence-Based Consensus Statement.Nutrients · 2025Review
- Effects of Dietary Interventions on Cognitive Outcomes.Nutrients · 2025Review
- A Narrative Review Evaluating Diet and Exercise as Complementary Medicine for the Management of Alzheimer's Disease.Nutrients · 2025Review
- Associations between oral health measures and cognitive function in middle aged and older Indian adults.Scientific reports · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors at 4 institutions in 1 country.
Funding
Abstract
backgroundLonger effects of multivitamin-mineral (MVM) supplementation on late-life cognitive function remain untested using in-person, detailed neuropsychological assessments. Furthermore, insufficient evidence exists for healthcare providers to recommend daily MVM supplements to prevent cognitive decline.
objectivesThis study aimed to test MVM effects on cognitive change using in-person, detailed neuropsychological assessments and conduct a meta-analysis within COSMOS (COcoa Supplement and Multivitamin Outcomes Study) cognitive substudies for a robust evaluation of MVM effects on cognition.
methodsCOSMOS is a 2 × 2 factorial trial of cocoa extract (500 mg flavanols/d) and/or a daily MVM supplement for cardiovascular disease and cancer prevention among 21,442 United States adults aged ≥60 y. There were 573 participants in the clinic subcohort of COSMOS (that is, COSMOS-Clinic) who completed all cognitive tests administered at baseline. For the meta-analysis, we included nonoverlapping participants across 3 COSMOS cognitive substudies: COSMOS-Clinic (n = 573); COSMOS-Mind (n = 2158); COSMOS-Web (n = 2472).
resultsIn COSMOS-Clinic, we observed a modest benefit of MVM compared with placebo on global cognition over 2 y {mean difference [95% confidence interval (CI)] = 0.06 SD units (SU) (-0.003, 0.13)}, with a significantly more favorable change in episodic memory [mean difference (95% CI) = 0.12 SU (0.002, 0.23)] but not in executive function or attention [mean difference (95% CI) = 0.04 SU (-0.04, 0.11)]. The meta-analysis of COSMOS substudies showed clear evidence of MVM benefits on global cognition [mean difference (95% CI) = 0.07 SU (0.03, 0.11); P = 0.0009] and episodic memory [mean difference (95% CI) = 0.06 SU (0.03, 0.10); P = 0.0007]; the magnitude of effect on global cognition was equivalent to reducing cognitive aging by 2 y.
conclusionsIn COSMOS-Clinic, daily MVM supplementation leads to a significantly more favorable 2-y change in episodic memory. The meta-analysis within COSMOS cognitive substudies indicates that daily MVM significantly benefits both global cognition and episodic memory. These findings within the COSMOS trial support the benefits of a daily MVM in preventing cognitive decline among older adults. This trial was registered at COSMOS-clinicaltrials.gov as NCT02422745, at COSMOS-Mind-clinicaltrials.gov as NCT03035201, and at COSMOS-Web-clinicaltrials.gov as NCT04582617.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.