These include serious infection, uremia or renal failure, drugs with bone marrow suppression properties (e.g., chloramphenicol), or concurrent undiagnosed folic acid or iron deficiency anemia
If dietary sources are insufficient, however, a doctor may recommend supplementation through pills or injections, depending on the cause of the deficiency.
Additionally, individuals with autoimmune or gastrointestinal disorders, such as pernicious anemia, celiac, or Crohns disease, are more likely to be at risk of deficiency
Excipients such as sorbitol, mannitol (sugar alcohols), lactose (in those with intolerance), and various binding agents or fillers may contribute to gastrointestinal symptoms
Methylcobalamin B12 is one of the most frequently requested wellness injections, so its natural for clients to have questions about how it works, what it supports and what to expect during a visit
Better Retention Compared to Other Forms Some studies suggest the methylated form of B12 may have longer tissue retention than non-methylated forms, supporting ongoing B12 status