Saturday, November 08, 2008

The plot thickens

A recent study Autism Prevalence Rates and Precipitation Rates in California, Oregon, and Washington Counties indicates that there is an environmental component to autism. Apparently autism occurs more often in areas with increased rainfall.

What the article says is not that more rain causes autism. It says that there is a correlation. The way to interpret that is to say that there is either something in the rain that causes a toxic effect--that may be mercury blowing over from China--or simply that children who don't get as much sun and with that lack Vitamin D are more more susceptible to autism. Both hypotheses make sense. But a third hypothesis that both mercury-laden rain as well as the lack of Vitamin D work together is an even stronger argument.

Whatever the case may be the proposition that the lack of Vitamin D in conjunction with mercury coming from any source might cause autism is a very compelling supposition. I have already proposed that the reason for the difference in the outcomes of the Faroe and Seychelles studies might be explained by correlating the Vitamin D status of the children (Faroe Islands children are deficient due to their northerly geographic location, Seychelle Islands children have plenty due to their location close to the equator (~ 10 degrees latitude) with year-round UV-B exposure.

It would be interesting to see if children whose mothers are Vitamin D deficient are more likely to be autistic. It might also be interesting to see if adding high doses of Vitamin D given shortly after a mercury containing flu shot or after applying mercury amalgam to teeth or for that matter after eating mercury-laden fish would lower the incidence of autism.

Vitamin D helps to make glutathione and gutathione is necessary for mercury detoxification.


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