liveonearth | Low Vitamin D Levels When Preg-->Shizophrenic Children (Reply)

Additionally, a study published in the September 9, 2010 issue of the Archives of General Psychiatry found that maintaining proper levels of vitamin D in utero and during early infancy can even help prevent a much more serious mental disorder – schizophrenia. Newborn babies with low vitamin D levels were more likely to develop schizophrenia later in life – leading researchers to suggest that perhaps vitamin D supplements might be all you need to prevent this devastating illness.

The researchers also looked at other populations, such as dark-skinned ethnic groups living in cold countries, and residents of highly urban areas who aren't exposed to regular sunlight like those in rural areas, concluding that: "It may be feasible to reduce the incidence of schizophrenia in this group by a staggering 87 percent" by simply giving them vitamin D supplements!

SOURCE
http://articles.mercola.com/sites/articles/archive/2011/05/03/tips-to-avoiding-depression.aspx

you have to be a member to see the study:
http://archpsyc.ama-assn.org/cgi/content/full/67/9/889