Vitamin B12 deficiency causes brain shrinkage, neurological disorders.

Research ties Vitamin B12 and Folate deficiencies with Alzheimers disease.
Science Daily ( May 8, 2001 ) ST. Paul, MN – People with low levels of Vitamin B12
Or Folate may have a higher risk of developing Alzheimer’s disease according to a
Study in the May, 8 issue of Neurology, The Scientific Journal of the American Academy of Neurology.