History I went to doctors in May because of a swollen painful neck I had a scan and bloods taken .the blood tests showed b12 at 152 out of range of 152-1000
Ferritin was 31 range was12-250
Folate 7.8 range 2-18.80
Second results taken 4 weeks later where
B12 452 ferritin 91
Folate 16.3
Ranges as above only changes made are I stopped taking Centrum multi vitamins for over 50s and 1000mg of vitamin d 2 weeks before first test as I've taken them for years and I thought that taken them was giving a false higher level to my tests. During the 4 weeks between the first and second test the only thing that I did different was take high dose bit c a few days before the second test for a virus.I have not received treatment for anything other than thyroid .again thanks for your help