Vitamin B12 is an essential nutrient. Here are the best food sources of vitamin B12, as well as fortified alternatives for ...

ANSWER: The DV (a replacement for what we used to call the recommended daily allowance, or RDA) for vitamin B12 is 2.4 mcg.

The ideal dose of vitamin B12 varies based on your sex, age, and reasons for taking it. This article examines the scientific evidence behind recommended dosages for B12 for different people and uses.

Dear I.F.: The DV (a replacement for what we used to call the recommended daily allowance, or RDA) for vitamin B12 is 2.4 mcg ...

The DV (a replacement for what we used to call the recommended daily allowance, or RDA) for vitamin B12 is 2.4 mcg. (There ...

It has also been proven that vitamin B12 promotes healthy brain functioning and boosts overall metabolism. The Reference Daily Intake (RDI) of vitamin B12 for adults is about 2.4 micrograms.

The National Institutes of Health (NIH) recommends that teens and adults over the age of 14 consume 2.4 micrograms (mcg) of vitamin B12 daily, pregnant people 2.6 mcg, and lactating people 2.8 mcg.

I am 73, and I was worried about dementia. Turns out, I am "normal." However, the neurologist told me to take 2,000 mcg of ...

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Because vitamin B12 contains the mineral cobalt, compounds with vitamin B12 activity are collectively called cobalamins. As the body cannot produce B12, dietary intake or supplements are essential.