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Old 10-07-2013, 06:25 AM
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mrsD mrsD is offline
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Join Date: Aug 2006
Location: Great Lakes
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mrsD mrsD is offline
Wisest Elder Ever
mrsD's Avatar
 
Join Date: Aug 2006
Location: Great Lakes
Posts: 33,508
15 yr Member
Lightbulb

I would think that since you had no symptoms from oral use, and you had good levels, why get injections at all?

They do not use the 500mcg injection dose of B12 here in the U.S.
Only 1000mcg. The injections provide a fast bolus of vitamin over a 3 day period and then you have nothing, until the next shot.

Taking oral you get some every day, however a smaller amount each day, but this is still 3 x the RDA if you use 1000mcg tablets.
This is more gentle and mimics the way we get B12 from food.

It is your decision, but oral seems best to me. You have to stop the oral too, before any testing. You could ask for an MMA test, to see if you are utilizing B12 properly. If MMA is elevated, that indicates not enough B12 is biologically active. Low MMA means the B12 you have is working.
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