“My question to the board is This: do any of you feel that I could take more than I should, or does that make a difference with B-12. My wife only bought one that is 1000 mg, so I'm trying that.”


Hi FREDH, I was diagnosed as being deficient in B12, and I now supplement with oral methylcobalamin at a dosage of 5000 mcg daily. I split my dosage and take 3000 mcg in the a.m. and 2000 mcg in the p.m.

If your B12 level was tested at a time when you were not also supplementing with any additional B12, and your result was in the mid to upper range of normal, then your 1000 mcg dosage may be adequate. If you were mildly deficient or at the lower end of normal, then you may want to increase your daily dosage.