This article is part of a broader study by the National Telecommunications and Information Administration (NTIA) about the uses and limitations of self-regulation. The NTIA has also already given (somewhat qualified) support for a self-regulatory approach for the control of personal information in telecommunications.1.
Vitamin B6 Overdose. People taking large dosages of vitamin B6 (pyridoxine) on a regular basis for an extended period of time should be aware that problems can arise. There is a potential for damage to your nerves, but in most cases it is reversible.
Because vitamin B12 is a water soluble vitamin and is excreted in the urine when consumed in excess, it's difficult to overdose on this essential nutrient. However, there are a few side effects to be on the lookout for if you're supplementing with vitamin B12 or receiving B12 injections.