Dementia
Dementia is a broad term used to describe a decline in cognitive abilities. This can manifest in memory loss, difficulty concentrating, and changes in mood or behavior. Vitamin D deficiency has been linked to an increased risk of developing dementia.
Vitamin D receptors are found in the hippocampus, the part of the brain responsible for memory and learning. Low vitamin D levels have been associated with reduced hippocampal volume and cognitive decline. Vitamin D may help protect against cognitive decline by reducing inflammation and oxidative stress.
While more research is needed to understand the link between vitamin D deficiency and dementia fully, several studies have found an association between low vitamin D levels and an increased risk of cognitive decline or dementia. In one study, those with lower vitamin D levels were more likely to develop dementia over six years than those with higher levels.
Another study revealed that men with lower vitamin D levels were more likely to develop Alzheimer’s disease than those with higher levels of vitamin D. It was also found that people with severe vitamin D deficiency were nearly twice as likely to develop dementia as those with sufficient vitamin D levels.