Walnut intake, cognitive outcomes and risk factors: a systematic review and meta-analysis
Cahoon, D., Shertukde, S. P., Avendano, E. E., Tanprasertsuk, J., Scott, T. M., Johnson, E. J., Chung, M., & Nirmala, N. · Annals of Medicine · 2021 January 15
DOI 10.1080/07853890.2021.1925955
Objective
To conduct a systematic review and meta-analysis evaluating the effects of walnut intake on cognition-related outcomes and risk-factors for cognitive decline in adults.
Conclusions
This academic review highlighted the efficacy of walnuts in improving cognitive health. Daily consumptions have been found to reduce brain diseases such as Alzheimer's and further improve memory, language, perception, verbal and non-verbal reasoning.
Critical Appraisal
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Insights
The existing evidence, although with low level of confidence, suggests that walnut intake may have a beneficial effect on cognition-related outcomes, including cognitive function, mood, and stroke.
The existing evidence, although with low level of confidence, suggests that walnut intake may have a beneficial effect on cognition-related outcomes, including cognitive function, mood, and stroke. Limitations in study design and comparability render the available evidence insufficient to draw a firm conclusion regarding the effects of walnut on cognition in adults. High quality studies and standardized interventions and measurement tools are necessary to determine the role of walnut intake in cognitive health.
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