[hannah]

I read several times that too much b12 is not toxic..here:



Vitamin B-12 supplements are generally safe, even at large doses.


Ideally you should be getting all of the vitamins and minerals you need from your diet, but in some cases you may need to take a supplement. Most vitamins and minerals can be toxic if you take too much. However, vitamin B-12 is a little different. Your system only absorbs a small amount at a time and gets rid of what it doesn't need, which means it's generally safe, even if you take too much.