Study Reveals Cognitive Decline Linked to Low-Normal Vitamin B12 Levels

In a recent study, researchers have identified a correlation between lower levels of biologically active vitamin B12 and cognitive decline in older adults. The findings suggest that even when vitamin B12 levels fall within the normal range, they may still be insufficient to maintain optimal cognitive function.

The study focused on older individuals who met the current nutritional requirements for vitamin B12 but exhibited slower cognitive processing speeds. Additionally, these individuals showed an increased presence of white matter lesions in the brain, which are often associated with cognitive impairments.

This research highlights the need for reevaluating the existing guidelines on adequate vitamin B12 levels, especially considering the critical role this nutrient plays in brain health. The findings could lead to updated dietary recommendations and interventions aimed at preventing cognitive decline among the aging population.

Date: 23 February, 2025

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Author

Mark Chiang

Ph.D in Biomedical Informatics Head of AI at GeneOnline