During pregnancy, your body needs extra vitamins to support your baby's growth and development. Pregnant women need 600 micrograms (mcg) of folic acid daily to reduce the risk of neural tube defects (problems with the development of the baby's brain and spine). They also need 770 mcg of vitamin A, 2.6 mcg of vitamin B12 and 600 international units (IU) of vitamin D.
https://www.sharecare.com/health/vitamins-supplements/vitamins-to-take-while-pregnant
Most don't because adding too much calcium to a multivitamin makes it unstable. Pregnant women need 1,000 milligrams a day; many supplements only contain 150 milligrams to 250 milligrams. You can take a tums tablet daily to supplement it. In addition, many pregnant women don't get the institute of medicine's recommendation for 600 IUs of vitamin D per day. But most prenatal vitamin formulations contain 400 IU, and this should be adequate when combined with a healthy diet, Dayal says.
https://www.fitpregnancy.com/nutrition/prenatal-nutrition/prenatal-vitamins-guide
Why you need vitamin A during pregnancy. Vitamin A is a fat-soluble vitamin that's stored in the liver. Vitamin A is important for your baby's embryonic growth, including the development of the heart, lungs, kidneys, eyes, and bones as well as the circulatory, respiratory, and central nervous systems.
https://www.babycenter.com/0_vitamin-a-in-your-pregnancy-diet_675.bc
Shares 106. During pregnancy, it is important to get the proper nutrients to foster healthy fetal development. You may be tempted to take a multivitamin in addition to other supplements. However, vitamin overdose can occur when an individual takes more than the recommended daily amount of a vitamin.
http://americanpregnancy.org/pregnancy-health/vitamin-overdose/
Learn why you need vitamin D when you're pregnant, how much you need in your pregnancy diet, food sources, and when you need a... Learn why you need vitamin C when you're pregnant, how much vitamin C you need in your pregnancy diet, food sources, and when y...
https://www.babycenter.com/0_vitamin-a-in-your-pregnancy-diet_675.bc
Vitamin Overdose. During pregnancy, it is important to get the proper nutrients to foster healthy fetal development. You may be tempted to take a multivitamin in addition to other supplements. However, vitamin overdose can occur when an individual takes more than the recommended daily amount of a vitamin.
http://americanpregnancy.org/pregnancy-health/vitamin-overdose/
If you plan to get pregnant or learn that you are, talk with your doctor right away to find out which prenatal supplement would be best for you to take. During pregnancy, your iron requirement increases to 27 mg and your folic acid requirement to 600 mcg.
https://www.sharecare.com/health/vitamins-supplements/vitamins-to-take-while-pregnant
In pregnancy, these issues become critical because there are not one but two patients to consider. Despite the lack of clear guidelines, there is sufficient evidence to suggest that you should at least consider monitoring the vitamin D status of your pregnant patients. Fetal needs for vitamin D increase during the latter half of pregnancy, when bone growth and ossification are most prominent. Vitamin D travels to the fetus by passive transfer, and the fetus is entirely dependent on maternal stores. Therefore, maternal status is a direct reflection of fetal nutritional status.
http://www.mdedge.com/obgmanagement/article/64426/obstetrics/vitamin-d-and-pregnancy-9-things-you-need-know
Vitamin D and Pregnancy. Vitamin D is a steroid vitamin from a group of fat-soluble pro hormones. Vitamin D and pregnancy are important together. Expecting mothers need to make sure they get the recommended amounts of vitamin D during pregnancy for both their own well being and the healthy development of their baby. The most significant compounds for human development are D2 and D3.
http://americanpregnancy.org/pregnancy-health/vitamin-d-and-pregnancy/
Learn why you need vitamin D when you're pregnant, how much you need in your pregnancy diet, food sources, and when you need a... Vitamin C in your pregnancy diet. Learn why you need vitamin C when you're pregnant, how much vitamin C you need in your pregnancy diet, food sources, and when y...
https://www.babycenter.com/0_vitamin-a-in-your-pregnancy-diet_675.bc
how much vitamin d should you take during pregnancy
You should take 600 IUs of vitamin D per day during pregnancy. During pregnancy 600 international units of vitamin D per day can be taken.  