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.

The absorption of vitamin B12 is about 2% at doses of 500 mcg or 1.3% at a dose of 1,000 mcg. Therefore, if someone consumes vitamin B12 less frequently, they will need a higher total amount to ...

Often, a vitamin B12 deficiency can look like normal signs of aging when, in fact, the deficiency itself is a sign of aging. Read more to discover how much vitamin B12 you should be ingesting as ...

To make sure you’re getting a sufficient dose of the vitamin, here’s what to know about its benefits, where to find it, and signs of vitamin B12 deficiency to look for, so you know when to ...