You cannot overdose on vitamin B12 since it is a water-soluble vitamin. skaman306/Getty Images You cannot overdose on vitamin B12 because any excess you simply pee out. If you get b12 shots, you may ...

Time your B12 supplement right with these dietitian-backed recommendations. Reviewed by Dietitian Maria Laura Haddad-Garcia "Key Takeaways" Vitamin B12 is essential for red blood cells, DNA synthesis ...

Vitamin B12 is essential for red blood cells, DNA synthesis and your cognitive health. Taking your vitamin B12 supplement at breakfast time may help with efficacy. While side effects are rare, vitamin ...