# what are the consequences, if any, of vitamin b12 overdose? **URL:** \ **Category:** Factual Questions\ **Created:** [June 14, 2003, 4:53am UTC](https://boards.straightdope.com/t/what-are-the-consequences-if-any-of-vitamin-b12-overdose/181755 "2003-06-14T04:53:06Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![The\_Calculus\_of\_Logic](https://avatars.discourse-cdn.com/v4/letter/t/aeb1de/32.png) [@The\_Calculus\_of\_Logic](https://boards.straightdope.com/u/The_Calculus_of_Logic)\ **Post date:** [June 14, 2003, 4:53am UTC](https://boards.straightdope.com/t/what-are-the-consequences-if-any-of-vitamin-b12-overdose/181755/1 "2003-06-14T04:53:06Z")
anyone know? ---
**Author:** ![Duck\_Duck\_Goose](https://avatars.discourse-cdn.com/v4/letter/d/50afbb/32.png) [@Duck\_Duck\_Goose](https://boards.straightdope.com/u/Duck_Duck_Goose)\ **Post date:** [June 14, 2003, 5:07am UTC](https://boards.straightdope.com/t/what-are-the-consequences-if-any-of-vitamin-b12-overdose/181755/2 "2003-06-14T05:07:00Z")
Google does. 😃 > **[Vitamins and minerals](https://www.netdoctor.co.uk/healthy-eating/a10801/vitamins-and-minerals-what-do-they-do/)** > > Vitamins and minerals are important for a healthy lifestyle. Find out about what they do in your body and the best sources. > [@](#): > > Poisoning: no danger as the vitamin dissolves in water, so excess is excreted in the urine. [http://www.mayhospi.com/Vitamins/nd-vitaminB12.asp](http://www.mayhospi.com/Vitamins/nd-vitaminB12.asp) > [@](#): > > Excessive Intake and Toxicity Symptoms > > No evidence of Vitamin B12 toxicity has been noted from oral intake. ---
**Author:** ![Ice\_Wolf](https://avatars.discourse-cdn.com/v4/letter/i/dfb087/32.png) [@Ice\_Wolf](https://boards.straightdope.com/u/Ice_Wolf)\ **Post date:** [June 14, 2003, 6:51am UTC](https://boards.straightdope.com/t/what-are-the-consequences-if-any-of-vitamin-b12-overdose/181755/3 "2003-06-14T06:51:39Z")
As **DDG** showed in her links, chances of lethal toxicity are nil. But to much B12 in injection can lead to a similar agitated state as with too much caffiene. [Link.](http://daleguyermd.com/pages/VitaminB12InjectionsHydrox.htm)