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For patients without absorption disorders, high-dose oral supplements of 1,000 to 2,000 mcg daily have been shown to be comparably effective at correcting mild to moderate deficiency at lower cost and greater convenience.
& Karp, C
Q: How often should I get B-12 injections
How to interpret a zinc test: Plasma or serum zinc is the most common zinc lab test, but it may not reveal your true zinc status
Vial sizes start at $25 for the 1.2 mg starter and ladder up through 6.4 mg vials, with a flat $39 medical visit fee
Do not stop B12 intake cold turkey when you change formulations
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