Aha! They can't tell you what they don't know, and chances are 100 to 1 that they don't know.

That is not a very high level considering you took B12 right up to the test. If you had been at that level after stopping the B12 for a few days, the result would be a 99% indication that your stores were full and your body awash in healing B12, which would be a very good thing. But, in the case you describe, there is no such indication.

Regarding "too much," the better lab ranges don't even have an upper level, because they realize that "too much" is not an issue.

I would keep on taking the larger dose, and in fact I would take more.

Have you looked at thyroid, which is likely to malfunction in conjunction with B12 malabsorption or as a result of the damage it has done. Sometimes the thyroid recovers on its own, but sometimes it doesn't.

rose