2007-09-02 01:49:33 · 3 answers · asked by frank b @ winfield 1 in Health ➔ Other - Health
Typical dose of B12 (cyanocobalamin) in nutritional supplements used by pregnant women and nursing mothers is 12 micrograms daily. Pregnant women and nursing mothers should only use doses higher than this if recommended by their physicians.
Administration of doses of vitamin B12 greater than 10 micrograms daily may produce a hematological response in those with anemia secondary to folate deficiency.
The Food and Nutrition Board of the Institute of Medicine of the National Academy of Sciences has recommended the following Dietary Reference Intakes (RDI) for vitamin B12:
Infants Adequate Intakes (AI)
0 through 6 months 0.4 micrograms/day ~ 0.05 micrograms/Kg
7 through 12 months 0.5 micrograms/day ~ 0.05 micrograms/Kg
Children Recommended Dietary Allowance (RDA)
1 through 3 years 0.9 micrograms/day
4 through 8 years 1.2 micrograms/day
Boys
9 through 13 years 1.8 micrograms/day
14 through 18 years 2.4 micrograms/day
Girls
9 through 13 years 1.8 micrograms/day
14 through 18 years 2.4 micrograms/day
Men
19 years and older 2.4 micrograms/day
Women
19 years and older 2.4 micrograms/day
Pregnancy
14 through 50 years 2.6 micrograms/day
Lactation
14 through 50 years 2.8 micrograms/day
The U.S. RDA, for vitamin B12, the value used for nutritional supplement and food labeling purposes, is 6 micrograms
2007-09-02 02:34:16 · answer #1 · answered by rosieC 7 · 0⤊ 0⤋
2 micrograms per day for adults, pregnant women require 3 micrograms per day. Vitmin B12 is non-toxic and there's not much danger of an overdose. Usually, when you have too much of a vitamin, your body will just pass it.
2007-09-02 08:53:19 · answer #2 · answered by marcy 3 · 0⤊ 0⤋
the b-12 i have are a 1000mcg time released pills. that is the recommended dosage on the bottle.
2007-09-02 08:59:39 · answer #3 · answered by stormy4 4 · 0⤊ 0⤋