Daniella,

Apparently the doc doesn't know much about B12. The test measured lots of B12 in the blood, which had not been stored or used, and, most of which will go out with the urine. It takes time to rebuild stores if they are low.

High B12 is not a problem. Low stores of B12 is a big problem, and the B12 test (especially after B12 has been taken) does not indicate what stores are.

Aim high. And, in case you are moving toward severe malabsorption (B12 is safe so there is no reason to take a chance) and additional 1000 mcg at least a few times per week would be much better than relying on a B complex for the B12. If you are malabsorbing and it becomes severe, a regular B complex will not give you any B12 at all.

rose