QuoteReplyTopic: What are toxicity symptoms for vitamin B12? Posted: July 22 2010 at 6:27am
What are toxicity symptoms for vitamin B12?
No toxicity levels have been reported for vitamin B12, and no
toxicity symptoms have been identified in scientific research studies.
Even long-term studies, in which subjects have taken 1,000 micrograms
of the vitamin on a daily basis for five years, have revealed no
toxicity effects.
When the National Academy of Sciences established its current
Tolerable Upper Intake Levels (ULs) for the B complex vitamins in 1998,
it did not establish a Tolerable Upper level for vitamin B12.
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