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A deficiency in Vitamin B12 can cause fatigue, brain fog, and neurological symptoms
Frequency of Injections How often you should get a B12 injection depends on whether youre correcting a deficiency or maintaining optimal levels
It corresponds to residues 177 through 191 of its parent sequence, with a tyrosine residue at the N-terminus in place of the phenylalanine found at position 176
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