However, it can take several weeks for the full benefits to be realized, depending on the individual's level of deficiency and response to treatment.
Vegetarians who are pregnant are especially vulnerable to a vitamin B12 deficiency and may cause permanent damage to the unborn child if a deficiency is present
Blood chemistry panels showed no hepatotoxicity (ALT, AST, bilirubin all within normal limits), no nephrotoxicity (creatinine, BUN unchanged), and no hematologic changes
If you have a diagnosed B12 deficiencysuch as from pernicious anemia or certain gastrointestinal issuesyour initial treatment may involve weekly B12 injections for several weeks
This can really help people with B12 deficiency live better lives
Hormone Research (2000) 5