Vitamin D improves cognitive function of the brain

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    A scientific study has revealed the benefits of vitamin D for the brain, including its protective effects against cognitive decline.

    The brain needs specific nutrients to function optimally. Glucose, of course, but also lipids, protein, iron… and vitamin D. According to a recent study by researchers at Tufts University, this may actually protect the brain from oxidative stress and cognitive decline.

    Vitamin D and cognitive health: links to be clarified

    The connection between diet and cognitive health is evident, and several studies have shown that certain diets have an interest in delaying cognitive decline. But researchers at the Friedman School of Nutrition Science and Policy at Tufts wanted to go further.

    Many studies, including many of the vitamin D studies, relate dietary or nutritional factors to performance or cognitive function in older adults, but all are based on vitamin D intake or blood levels. We wanted to know if vitamin D is present in the brain. and, if so, how these levels relate to cognitive decline“said the main author prof. Shea comes up.

    Vitamin D supports many functions in the body, including the immune response and maintaining bone health. Food sources include fatty fish and fortified beverages (such as milk or orange juice). Short exposure to the sun also stimulates vitamin D production. According to ANSES, adults aged 18-79 should consume 3.1 micrograms of vitamin D per day.

    Vitamin D in the brain linked to better cognitive function

    In this study, the researchers wanted to know if the concentration of vitamin D in the brain is related to improvements in cognitive function.

    To do this, they examined brain tissue samples from 209 elderly people with no signs of cognitive impairment from a large study that began in 1997. (Rush Memory and Aging Project).

    They then assessed the participants’ cognitive function as they aged and analyzed the “defects” in their brain tissue after death.

    The researchers specifically looked for the presence of vitamin D in four areas of the brain: two associated with changes associated with Alzheimer’s disease, one associated with blood flow-related forms of dementia, and an area not known to be associated with cognitive decline.

    In doing so, they discovered that vitamin D was indeed present in the volunteers’ brain tissue, and that high levels of vitamin D in all four areas were associated with better cognitive function.

    This study reinforces the importance of investigating how food and nutrients build resilience to protect the aging brain from diseases such as Alzheimer’s disease and other related dementias.Sarah Booth, co-author of the study, said.

    NO to diets, YES to WW!

    The protective mechanism of vitamin D remains to be elucidated

    However, vitamin D levels in the brain were not associated with any of the known physiological markers of Alzheimer’s disease in the brain, including the accumulation of amyloid plaques, Lewy body disease, or evidence of chronic or microscopic cerebrovascular abnormalities. Therefore, it is not known exactly how vitamin D may affect brain function.

    Dementia is multifactorial, and many disease mechanisms that cause it have not been well characterized.says Shea. “Vitamin D may be involved in outcomes that we have not yet explored but plan to explore in the future.”“.

    Therefore, further work is needed to investigate various aspects of the vitamin.

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