How many mg of B12 can your body absorb?

The amount of vitamin B12 the body can absorb varies depending on several factors, including the form of B12 and individual health conditions. Typically, the body can only absorb about 1.5 to 2 micrograms of B12 from a single dose, regardless of whether it is taken in supplement form or through food. However, larger doses may be beneficial for those with absorption issues, as excess B12 can be excreted by the body. It's important to consult with a healthcare provider for personalized recommendations.