IV. NUTRITIONAL DISORDERS
A. General Comments
Malnutrition in general impairs both the developing and developed nervous
system. A number of vitamin deficiency states, especially B vitamins, cause
specific nervous system pathology. Deficiency states include thiamine (B1),
pyridoxine (B6) and cyanocobalamin (B12). Examples of B1 and B12 deficiency
states are described below. The B1 deficiency conditions are often associated
with alcoholism and may be complicated by general malnutrition, but are
ameliorated or reversed by B1 administration and thus have been considered
as principally caused by B1 deficiency.