A 41-year-old member asked:
How do i know how much vitamin b-12 should i take a day?
1 doctor answer • 1 doctor weighed in
Neurology 37 years experience
Check your level.: You want to keep your B12 level in the blood above 350. You would first check a level. If it low you can try to fix the problem with mega doses of B12 by mouth or 1.2 mg sublingually (by-pass the malfunctioning GI tract).
4.2k viewsAnswered >2 years ago
A 45-year-old member asked:
Is 2500 mcg a day too much of vitamin b-12?
1 doctor answer • 9 doctors weighed in
Psychiatry 43 years experience
Vitamin B12: In B12 deficiency, doses of 300-10, 000 mcg (microgram) by mouth daily have been used. 2500 mcg per day is not too much.
4.3k viewsReviewed >2 years ago
Last updated Jun 24, 2014
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