Vitamin D does NOT protect against dementia, study says

Vitamin D does not protect against dementia, new research suggests.

According to UPI.com, scientists claim there is 'no convincing evidence' so-called sunshine supplements protect people from memory loss, a study found. 

Although dementia patients typically have low vitamin D levels, the researchers believe their condition may be brought on by them lacking benefits of UV exposure that have nothing to do with the vitamin.

Study author Professor Mark Hutchinson, from the University of Adelaide, said: 'We've broken a commonly held belief that vitamin D resulting from sun exposure is good for your brain. 

'Vitamin D, although essential for healthy living, is not going to be the miracle "sunshine tablet" solution for brain-disorders that some were hoping for.'

How the research was carried out  

The researchers analysed 73 studies investigating the link between vitamin D and brain health.

These included the vitamin's effect on disorders such as Alzheimer's, Parkinson's, Huntington's and multiple sclerosis.

The findings were published in the journal Nutritional Neuroscience. 

UV may benefit the brain in a way that has 'nothing to do with vitamin D'

Results further suggest vitamin D does not protect against any of the brain disorders analysed.

Lead author Dr Krystal Iacopetta said: 'Our work counters an emerging belief held in some quarters suggesting that higher levels of vitamin D can impact positively on brain health.' 

Professor Hutchinson added: 'There are some early studies that suggest that UV exposure could have a positive impact on some neurological disorders such as multiple sclerosis.

'We have presented critical evidence that UV light may impact molecular processes in the brain in a manner that has absolutely nothing to do with vitamin D.'

The researchers add further studies are required to determine how sun exposure benefits the brain in other ways. 

People who are 'skinny fat' may be at a higher risk of dementia 

This comes after research released earlier this month suggested people who are 'skinny fat' may be at a higher risk of dementia.

Known as sarcopenic obesity, having a slender look but a high percentage body fat is associated with reduced memory, self control and orientation skills, a study by Florida Atlantic University found.

A high percentage body fat is thought to drive cognitive decline by causing inflammation and damage to the brain's blood vessels.

Researchers warn high-fat levels and decreasing muscle mass in people who look healthy could become a serious public health concern.

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