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Wisest Elder Ever
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Join Date: Aug 2006
Location: Great Lakes
Posts: 33,508
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Wisest Elder Ever
Join Date: Aug 2006
Location: Great Lakes
Posts: 33,508
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It is better to take all at once... on empty stomach.
If you have intact intrinsic factor this is less of an issue.
But those who show up here with lows, have some problem or they would not be low and have the neuro symptoms.
When intrinsic factor is not working (for whatever reason), the only way B12 is absorbed is by passive osmosis thru the lining of the GI tract. The higher the concentration present, the more that will get thru. 5mg will result in more being absorbed, which is still a very small amount. 1mg also is absorbed, but 5 times less than the larger dose.
Some things have receptors controlling absorption, or a biochemical barrier. Zinc, magnesium, calcium, carnitine, Neurontin, are examples of limited absorption, needing perhaps divided doses.
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Weezie looking at petunias 8.25.2017
**************************** These forums are for mutual support and information sharing only. The forums are not a substitute for medical advice, diagnosis or treatment provided by a qualified health care provider. Always consult your doctor before trying anything you read here.
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