vitmanin b is water soluble and does not build up in the system so people usually never get too much of it. u can overdose if taking huge amounts at once like 3000mg or sumtin..I drink vitamin b complex juice everyday and it has about 300mg of things like b6, b12, folic acid, nacin, thiamin and other b conplex stuff..helps with anxiety ALOT ..
I take vitamin B12 Complex once a day and there are no side effects to this dietary supplement. This is actually a great source and mineral for the reduction of anxiety disorders. Of course, like any oral med/mineral, it's possible to overdose...but you'd have to take a hell of a lot to get to this point! To me, u cannot get enough of Vitamin B....:)