Hair Zinc and Chromium Levels Associated with Reduced Likelihood of Age-Related Cognitive Decline in Centenarians and Oldest-Old Adults

    October 2023 in “ ˜The œJournal of nutrition, health & aging ”
    Long Feng, Yi Zheng, Yonghong Liu, Yan Zhao, Mingxing Lei, Zhirui Li, Shihui Fu
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    Studysummary In this study, hair levels of zinc and chromium were associated with a reduced likelihood of age-related cognitive decline in centenarians and oldest-old adults, suggesting further research is needed on these elements' potential role in cognitive health among the elderly. Our plain-language summary of this paper — not a Tressless recommendation.
    The study involved 50 centenarians and 73 oldest-old adults and found that higher levels of zinc and chromium in the hair were associated with a reduced likelihood of age-related cognitive decline (ARCD). Zinc is crucial in cellular metabolism and acts as an antioxidant, while chromium can improve glucose management and enhance cognitive function in older adults at risk for neurodegeneration. However, the study had limitations such as a small sample size and lack of follow-up results. Further research is needed to confirm these findings and explore the potential benefits of zinc and chromium supplementation for cognitive function.
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