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.

Everyone requires a certain amount of B12 depending on their age, starting with .5 mcg per day for infants up to 2.4 mcg for ...

Vegetarians or vegans: Many good food sources of vitamin B12 are derived from animal products. Strict vegans who avoid all these may have a greater risk of deficiency. Infants of vegetarians or vegans ...

A note on price Generally, prices for vitamin B12 range from $0.10 to $1.00 per serving, or $7 to $30 per container. $ = under $0.20 per serving $$ = $0.20-$0.75 per serving $$$ = over $0.75 per ...

Because it’s water-soluble, vitamin B12 doesn’t get stored in your body, so you have to make sure you’re getting your recommended requirement every day.

Eggs If you eat eggs, they can be a good source of vitamin B12. One hard-boiled egg has about 0.6 micrograms of vitamin B12. That’s 25% of how much you should get per day. Of course, you’ll ...

Researchers measured their active B12 levels, which show how much of the vitamin the body can actually use. The participants had an average B12 level of 414.8 pmol/L, which is well above the U.S ...