There may be instances where certain conditions, such as poor nutrition, intestinal issues, infections, and cancer, may lead to B12 deficiency
After 6 months, all patients had normal vitamin B12 concentrations
It has also been linked to low stomach acid and gastritis, each associated with decreased iron absorption and lower iron levels
* Vitamin B 12 deficiency is associated with either long-term proton inhibitor (PPI) or Histamine-2 receptor blocker (H 2 blocker) use, but a causal relationship is not established
If you do need to supplement, the next question is: what sort of supplement should you take
Your test result of 600 (there are two units of measurement used but neither would make you appear deficient) in April : it is possible to have a higher serum B12 result, yet not be able to utilise the B12 in your bloodstream because of a transport malfunction which means that your B12 cannot reach cells/tissue