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Impact of Coconut Oil and Its Bioactive Metabolites in Alzheimer's Disease and Dementia: A Systematic Review and Meta-Analysis.

  • 2024-11-01
  • Diseases (Basel, Switzerland) 12(11)
    • Duaa Bafail
    • Abrar Bafail
    • Norah Alshehri
    • Noura Hamdi Alhalees
    • Ahmad Bajarwan

Study Design

Type
Review
Methods
systematic review and meta-analysis of seven studies; protocol registered in PROSPERO; search from January 2015 to June 2023; thematic analysis and meta-analysis with forest plots using RevMan
Background/Objectives: Alzheimer's disease (AD) is the most common form of dementia and affects approximately 50 million individuals worldwide. Interest in coconut oil (CO) as a potential dietary intervention has surged owing to its substantial medium-chain triglyceride (MCT) content. Therefore, sustaining cognitive function and potentially slowing the progression of AD are crucial. This systematic review and meta-analysis evaluated the effects of CO and its bioactive metabolites on AD and dementia. Methods: The review protocol is registered in PROSPERO (CRD42023450435). Relevant research articles published between January 2015 and June 2023 were systematically searched. Seven studies met the predetermined eligibility criteria. Thematic analysis was utilized to synthesis the data about the qualitative features, while meta-analysis was employed for the quantitative findings. A meta-analysis was conducted to assess the standardized mean difference (SMD) and the corresponding 95% confidence interval (CI). Forest plots were generated using Review Manager 5.3 (RevMan 5.3). Results: The analysis revealed that all studies showed consistent results regarding the effects of CO on cognitive scores, with little variability in the true effects of CO on cognitive scores across the studies included in the meta-analysis. Conclusions: CO improved cognitive scores in patients with AD compared with those in the control group (p < 0.05). The results of this study add to the increasing amount of evidence indicating that MCTs found in CO might be a way to improve abilities and potentially slow the advancement of AD. The findings of this study may encourage the development of targeted dietary strategies and interventions for individuals at risk of or diagnosed with AD.

Research Insights

  • Coconut→Improved Cognitive Score

    CO improved cognitive scores in patients with AD compared with those in the control group (p < 0.05).

    Effect
    Beneficial
    Effect size
    Moderate
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