how often inject b12 Will I Need Vitamin B Complex Injections? How Long Does B12 Injection
Description
This means that as we age, our bodies become less efficient at absorbing B12, making deficiency more common among the elderly

doi: 10.1016/j.trecan.2017.01.005
Most antibiotics, methotrexate, and primethamine may invalidate folic acid and cyanocobalamin values in blood tests

B12 deficiency can distort HbA1c results, but the direction is variable results may be spuriously low or high depending on the degree of anaemia, red cell changes, and the assay used