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 ...

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

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

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

However, the neurologist told me to take 2,000 mcg of B12 daily. My multivitamin Skip to ... As I understand the recommended DV is 2.4 mcg, and for those over 50 years old, it is 25-100 mcg.

One review recommended that those with vitamin B12 deficiency take 1 mg of vitamin B12 daily for a month, followed by a maintenance dose of 125–250 mcg per day (21 Trusted Source).

Magnesium, probiotics, and collagen are some of the buzziest supplements on the market right now, but they are just three of ...

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 ...

Turns out, I am “normal.” However, the neurologist told me to take 2,000 mcg of B12 daily. ... As I understand the recommended DV is 2.4 mcg, and for those over 50 years old, it is 25-100 mcg.