Since a major effect of taking high B-Complex vitamins for a lengthy time period is an increase in zinc and potassium retention, this could become quite detrimental for someone who is prone for Prostatitis, ovarian cysts, painful menstruation, chronic bladder infections, or inflammatory gallbladder disease. However B-Vitamins might benefit someone with mild cirrhosis of the liver, some types of hepatitis, classic Migraine Headaches, or any other number of high iron manganese-storage types of medical conditions. Unfortunately those benefits are quite mild, and only seen in younger individuals, while diminishing towards middle age and beyond... Full Text