Here is something interesting.

According to the Health Alert newsletter, and biochemistry textbooks, the symptoms for neuropsychiatric disorders are the same as those listed for Vitamin B deficiencies!  Who knew?! 

Also, another fact about Vitamin B:  most B vitamins sold in US are derived from coal tar…really, from India or China.  One place in US makes it;  Reilly Tar and Chemical, in Indiana, I think.  The vitamins are left after tar and creosote are extracted.  Makes you want to look for more whole food sources of nutrients, doesn’t it?