Mark's concerns illustrate how the internet can confuse people.
For example... ANY nutrient taken with cancer has a POTENTIAL, not a guarantee to increase cell division. After all, nutrients improve cell functions, and they will improve cancerous ones too. Good oncologists know how to guide patients in this area.
Leber's optic neuropathy on manifests with cyano form B12, and I found papers on PubMed years ago confirming this. It is a toxicity to the cyanide portion of the synthetic molecule. Methyl has no cyanide.
I don't know where they got insomnia....that is a red herring, probably from some other website. Notice that no citations are given on AccuCell...that is a clue to be careful. Good sites give the citations to papers so you can read them yourself if you need to.
Compare to this site for information:
Quote:
Toxicity
No toxic or adverse effects have been associated with large intakes of vitamin B12 from food or supplements in healthy people. Doses as high as 1 mg (1000 mcg) daily by mouth or 1 mg monthly by intramuscular (IM) injection have been used to treat pernicious anemia without significant side effects. When high doses of vitamin B12 are given orally, only a small percentage can be absorbed, which may explain the low toxicity. Because of the low toxicity of vitamin B12, no tolerable upper intake level (UL) was set by the Food and Nutrition Board in 1998 when the RDA was revised (6).
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at
http://lpi.oregonstate.edu/infocente...B12/index.html
This site keeps up with the research and provides excellent data that is documented.
So Mark brings up a good point, and it is really important to understand the validity and explanations for things you may find on the net. The brief listing on AccuCell is one thing to watch out for.
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All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
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Weezie looking at petunias 8.25.2017
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