|
Studies in Europe and elsewhere have shown that vitamin D deficinency during
pregnancy may adversely affect fetal growth, bone formation, tooth enamel
formation, and the proper utilization of calcium. Mothers theoretically at risk
of vitamin
D deficiency are those who avoid dairy products (which are routinely
fortified with vitamin D), blacks and others with darkly pigmented skin,
vegetarians, and those without adequate sun exposure. The term
"theoretical" is used because deficiencies are not commonly
encountered in any of these groups but they do have increased risk. Vegetarian
mothers often have vitamin
D levels lower than non-vegetarians but they are usually still in normal
range. Blacks are considred to be at increased risk due to increased skin
pigment but studies supporting this contention have not been consistent. Since
sunshine is the major source of vitamin D, those that live in northern latitudes
and those with dark skin are theoretically at risk of deficiency. The best way
for women to insure adequate vitamin
D status is to spend some time outdoors during their pregnancy (but don't
tan) and to consume vitamin D-fortified dairy products. It should also be
mentioned that most prenal vitamins include some vitamin D as well. For women
who get adequate sun exposure, routine supplementation with vitamin D is not
indicated. Recently, the National Academy of Sciences recommend vitamin D
supplementation of 10 mcg daily for complete vegetarians and 5 mcg daily for
those who don't eat vitamin D-fortified foods. Women who are considering
supplementation should speak with a health care provider. Most prenatal vitamins
contain Vitamin D.
Disclaimer: This information is intended as a guide only. This information is offered to you with the
understanding that it not be interpreted as medical or professional advice. All
medical information needs to be carefully reviewed with your health care
provider.
|
