Low B12 Seen in Aging, Autism and Schizophrenia

The brains of the elderly and younger people with autism and schizophrenia may share a common link: Both have low levels of vitamin B12, researchers say. The facts that blood levels of B12 do not always mirror brain levels of the vitamin, and that brain levels decrease more over the years than blood levels, may imply that various types of neurological diseases — such as old-age dementia and the disorders of autism and schizophrenia — could be related to poor uptake of vitamin B12 fro