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Vitamin D doesn’t boost kids’ brainpower

Vitamin D doesn’t boost kids’ brainpower

Tuesday, 17 April 2012 10:30 AM

While vitamin D may improve adults’ brainpower, it doesn’t seem to in children, according to the latest UK research. Image: Thinkstock

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High levels of vitamin D do not seem to boost teens’ academic performance, new research suggests.

A study published online in the Journal of Epidemiology and Community Health, said previous research had linked higher levels of the vitamin to enhanced cognitive function in adults.

The authors of this study wanted to find out if the same was true of children, and what impact different types of the vitamin - sourced mainly from sunlight (vitamin D3) or from plants (vitamin D2) - might have.

They based their findings on just over 3,000 children whose vitamin D3 and D2 levels were measured when they were nine years old, on average.

All the children were part of the Avon Longitudinal Study of Parents and Children (ALSPAC), which is tracking the long term health of a large group of children born in the early 1990s.

The childrens’ academic performance in English, maths, and science was then assessed between the ages of 13 and 14, and again between the ages of 15 and 16 in terms of grades obtained in GCSE exams.

Higher vitamin D3 levels were more common among children from more affluent backgrounds, while higher levels of vitamin D2 were more common among those from more disadvantaged backgrounds.

Their results showed that vitamin D3 levels were not associated with better academic achievement.

And higher levels of vitamin D2 were linked to poorer performance in English in 13 to 14 year olds and fewer A* to C GCSE grades obtained at the ages of 15 and 16.

The authors said their findings back up other vitamin D research in children, and suggest that perhaps the benefits of the vitamin on adult brainpower does not emerge until later in life.

Several studies have shown a link between vitamin D and neurological functions and viability, as well as various other aspects of health.

These studies resulted in calls for changes to public health guidance regarding extreme protection against UV exposure, said the authors.

“However, our results suggest that protection of children from UVB exposure, which has been associated with low levels of vitamin D, but which protects against skin damage and skin cancer, is unlikely to have any detrimental effect on academic achievement.”

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