I am wondering what to make of these B-12 blood test results. All taken this year. None of the doctors i have seen have any idea. they all think the 2nd reading was a mistake, but i figure if i was taking 20,000 per day for three weeks it could well have been correct. Since the Nov 23 test i have started on 5000 a day again, on an empty stomach.

My main interest here is that even though I was consuming 1000mcg per day for the past six months, the level has dropped. Any insight would be much appreciated.

March 17............162 pg/ml
Started talking 20,000mcgs per day. sometimes without food

April 7 ................5297pg/ml
Took 1000mcg per day with food (a different brand)

June 2.................879pg/ml
Continued taking 1000mcg per day with food

November 23........849pg/ml
Started on 5000mcg per day again.