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Intrinsic factor deficiency causes pernicious anemia, which may be associated with subacute combined degeneration of the spinal cord
These bacteria use the B12 vitamins in the body thus leading to lesser amounts available for your use
If you change your mind about your course purchase, you may request a refund within 14 days of purchase, provided you have not accessed any course content
If you've had a BAD experience with B12 shots, it's most likely that you do not tolerate or convert cyanocobalamin well (see if you can verify what form of B12 was in the shot that made you react poorly, and then stay away from that specific form if you can)
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