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A member asked:
What is the max daily dose of vitamin b12 an adult female with very low levels can take? if her face is flushed is she taking too much?
5 doctors weighed in across 3 answers
1000 micro: Equals one milligram this dose works for most people. See doc if any trouble.
Answered 8/17/2013
4.9k views
B12 deficiency: The usual dose for vitamin B12 orally is 1 mg (1000 mcg) orally once daily. Some people need 2 mg (2000 mcg). It is never necessary to take more than that.
Answered 10/3/2016
4.9k views
Interesting question: Adults generally need 2.6 micrograms b12/day. To replace deficiencies, im shots bypass gut absorption problems that can contribute to deficiency in the first place. 1, 000 micrograms of intramuscular cobalamin can be given once/day for 10 days, then once/week for four weeks, followed by once/month for life. Sublingual b12, 500-1000mcg/day. The form of B12 (cobalamin) may be important; see comment.
Answered 3/21/2018
4.9k views
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Is it ok to take a daily dose of vitamin B12 with fish oil gels?
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Vitamin B12 level is 141 pg/mL. Doctor said I should take dissolvable 1000 mcg B12 daily. How long would I need to take this for? Is this usually lifelong?
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Is the vitamin B12 level of 194 pg/mL too low for 51-year-old female? Should supplements be taken at this level?
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A member asked:
My vitamin B12 level is 346.2 pg/mL. Is it low enough to cause symptoms such as tremors? (it's in the normal range but low side). Should I take supplements ?
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