Quote:
Originally Posted by Viralmd
And, as a water soluble vitamin, what isn't needed goes out in the urine. It's not stored.
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B-12 is stored in the liver. Roughly three to five years years worth.
You're right about one thing: the body does eliminate what it doesn't store.
What's not stored is eliminated through the colon, not the bladder.
B-12 overdose is considered nontoxic; however, there is a link between too much B-12 and certain cancers.
My knowledge comes from having a B-12 deficiency due to only having a partial intrinsic factor.