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).

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

UL refers to the maximum daily dose of a vitamin that is unlikely to cause adverse side effects in the general population. This threshold has not been set for B12 because your body excretes ...

When your body doesn't receive enough vitamin B12, it slows the growth of red blood cells. A cumulative loss of red blood cells can result in vitamin B12 deficiency anemia. With it, you can experience ...

A healthcare provider will recommend a dosing schedule for oral vitamin B12 supplementation. If you need a higher dose, your provider may recommend B12 injections. Vitamin B12 Injections ...

When it comes to enhancing vitamin B12 absorption, the dose matters. “B12 is absorbed differently than other B vitamins, and that’s because of intrinsic factor, a protein found in the stomach ...

Vitamin B12 dosage varies depending on your age, gender, lifestyle and various other factors.

The National Institutes of Health recommends that the average man consume a mere 2.4 micrograms a day, which is actually the lowest daily recommended dose of any vitamin. “Vitamin B12 ...

Vitamin B12 is best taken with a meal or in the morning for maximum absorption and the least amount of negative effects. Though some experts advise taking it on an empty stomach, particularly if ...

Vitamin B12 is essential to your body, but some people find it hard to maintain healthy levels without the help of a B12 supplement. Not everyone needs to supplement B12, but you should do so if yo… ...

DEAR DR. ROACH: I’m a vegan, and my multivitamin is my only source of B12. It states I’m getting 200% of my daily requirement. Is that sufficient? — M.E. ANSWER: People who are strict vegans ...

When it comes to enhancing vitamin B12 absorption, the dose matters. “B12 is absorbed differently than other B vitamins, and that’s because of intrinsic factor, a protein found in the stomach ...