When there is an excess of the neurotransmitter glutamate, it causes a phenomenon called glutamate neurotoxicity that ultimately leads to the death of neurons. According to a 2018 study published by the Journal of the Neurobiological Studies, vitamin D helps exert antioxidant actions in the brain, protecting it from oxidative stress and glutamate neurotoxicity.

Considering the growing global rate of dementia and the fact that 29% of U.S. adults3 are deficient in vitamin D, achieving vitamin D sufficiency should be top priority when developing a proactive care plan for maintaining healthy cognitive function with age. The problem? This can be easier said than done.

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