Meta-analysis links vitamin D deficiency to elevated dementia risk

Dementia affects millions globally with cases expected to surge by 3 million annually, causing cognitive decline and family burden.

As dementia cases rise toward a projected surge of 3 million new diagnoses annually, a peer-reviewed meta-analysis in BMC Neurology quietly places a common nutritional deficiency at the center of the conversation. Vitamin D — synthesized through sunlight, carried in food, and absent from the daily lives of roughly one in three American adults — appears to raise dementia risk by 32 percent when low, and by nearly 50 percent when severely depleted. The finding invites a deeper question not merely about supplementation, but about which truths a society chooses to amplify when the remedies availab

Meta-analysis links vitamin D deficiency to elevated dementia risk

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