Quote:
Originally Posted by mrsD
2500mcg = 2.5 milligrams
This is not completely absorbed, orally.
And yes, there is no upper limit set for B12 by the FDA.
If you take it for 3 months and see no improvement at all,
you can assume you don't need it. You can then take it
once or twice a week, to maintain.
You should really get the numbers from your test for a definite
answer.
Not all PNers have low B12 (below 400 US units).
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Hi MrsD,
I got a copy of my vitb12 result today. It was taken last June 2011 ... its 908. It seems within normal range. Just the same I started taking vitb12 (methycobalamin) last mid Feb/2012 at 2500mcg . When I read your post that there is no toxicity of overdose, I increased it to 5000mcg.
Though there is no overdose, is there a safe maximum mcg that one can take in a day?
Thank you so much.