In a cohort of pregnant women in Bangalore, India, with a high incidence of vitamin B-12 deficiency, we reported previously that women in the lowest tertile for plasma vitamin B-12 concentration during all 3 trimesters of pregnancy had significantly higher risk of IUGR that persisted after adjusting for maternal age, weight, education, and parity (12)
Clinical trials showed minimal adverse effects, and anecdotal reports from thousands of users confirm this
Depending on your individual needs, your provider may recommend ongoing injections or transition you to a different regimen once your levels are stable
Vitamin B12 deficiency, left untreated, can lead to pernicious anaemia or neurological problems
There is no universal frequency that applies to everyone.
It is essential for the development of red blood cells