Vitamin B12 can be stored in the body because it is water soluble. Every expectant mother would do well to provide her liver with good reserves of this essential nutrient, since pregnancy makes unusual demands on those stores. A woman has two strikes against her in regard to B12 reserves if she has been on the Pill. A research team from Ohio State University College of Medicine found that healthy women who were taking contraceptives experienced a rapid fall in serum B12 values by an average of 40 percent lower than the control group who had not taken contraceptives. The stress of pregnancy on the top of this reduction caused by the Pill can put both mother and the baby in risk as far as B12 reserves are concerned, unless the mother takes more of this vitamin than many prenatal vitamin supplements provide.
Next time we will discuss the special need of vitamin B12 for vegetarians.