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What If Vitamin D Deficiency Is a Cause of Autism?: Scientific American

What If Vitamin D Deficiency Is a Cause of Autism?: Scientific American

As evidence of widespread vitamin D deficiency grows, some scientists are wondering whether the sunshine vitamin—once only considered important in bone health—may actually play a role in one of neurology's most vexing conditions: autism.

The idea, although not yet tested or widely held, comes out of preliminary studies in Sweden and Minnesota. Last summer, Swedish researchers published a study in Developmental Medicine and Child Neurology that found the prevalence of autism and related disorders was three to four times higher among Somali immigrants than non-Somalis in Stockholm.

[...]

What seemed to link the two regions was the fact that Somalis were getting less sun than in their native country—and therefore less vitamin D. The vitamin is made by the skin during sun exposure, or ingested in a small number of foods. At northern latitudes in the summertime, light-skinned people produce about 1,000 international units (IUs) of vitamin D per minute, but those with darker skin synthesize it more slowly, says Adit Ginde, an assistant professor at the University of Colorado Denver School of Medicine. Ginde recommends between 1,000 to 2,000 IUs per day, calling current recommendations of 200 IUs per day outmoded.

Comments

mbarnes said…
anyone worried about cancer should know the data on vitamin D and cancer prevention.. Take a look at the site vitaminD3world for some good summaries. The site also offers a good newsletter and recently launched a new micro pill formulation of vitamin D, and offers 400 micro pills at a very good price.

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