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What is the recommended dosage of B12?

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Quick Answer

According to the Mayo Clinic the recommended dietary amounts of vitamin B12 vary. Experts recommend 2.4 micrograms a day if you are 14 or older, 2.6 micrograms if you are pregnant and 2.8 micrograms a day if you are breastfeeding.

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Full Answer

The Mayo Clinic states that recommended dietary amounts of vitamin B12 are not available for those under 14. The adequate intake level is 0.4 micrograms for infants 0 to 6 months old, 0.5 micrograms for infants 7 to 12 months old, 0.9 micrograms for children 1 to 3 years old, 1.2 micrograms for children 4 to 8 and 1.8 micrograms for children 9 to 13. Doctors sometimes treat specific conditions, such as canker sores and anemia, with doses exceeding the recommended dietary amounts.

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