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.

Our body needs a variety of different vitamins and minerals to thrive, including eight different B vitamins. And out of all of them, vitamin B12 might be the most popular. But what exactly is B12 ...

The Recommended Dietary Allowance (RDA) of vitamin B12 for adults 19 and older is 2.4 micrograms per day. However, if you are ...

The participants were assigned to one of three groups: controls (no nori), low-dose (5 g nori or 2.4 µg vitamin B12 per day), and high-dose (8 g nori, or 4 µg vitamin B12 per day.

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 ...