Problem | Vit. D Reduces | Evidence |
0. Chance of not conceiving | 3.4 times | Observe |
1. Miscarriage | 2.5 times | Observe |
2. Pre-eclampsia | 3.6 times | RCT |
3. Gestational Diabetes | 3 times | RCT |
4. Good 2nd trimester sleep quality | 3.5 times | Observe |
5. Premature birth | 2 times | RCT |
6. C-section - unplanned | 1.6 times | Observe |
Stillbirth - OMEGA-3 | 4 times | RCT - Omega-3 |
7. Depression AFTER pregnancy | 1.4 times | RCT |
8. Small for Gestational Age | 1.6 times | meta-analysis |
9. Infant height, weight, head size within normal limits | RCT | |
10. Childhood Wheezing | 1.3 times | RCT |
11. Additional child is Autistic | 4 times | Intervention |
12.Young adult Multiple Sclerosis | 1.9 times | Observe |
13. Preeclampsia in young adult | 3.5 times | RCT |
14. Good motor skills @ age 3 | 1.4 times | Observe |
15. Childhood Mite allergy | 5 times | RCT |
16. Childhood Respiratory Tract visits | 2.5 times | RCT |
RCT = Randomized Controlled Trial
Note: There are about 20 other health improvements which are < 1.3 times
Table of contents
- As a result of huge decline in vitamin D levels in past 40 years < 7% of women now have sufficient vitamin D
- See also PREGNANCY in VitaminDWiki
61 Pregnancy AND Intervention studies - See also INFANT-CHILD in VitaminDWiki
- See also WOMEN in VitaminDWiki
- See other in VitaminDWiki
As a result of huge decline in vitamin D levels in past 40 years < 7% of women now have sufficient vitamin D
Few whites, Fewer Hispanics, and No Blacks have > 40 ng of Vitamin D
 Chart PDF is on VitaminDWiki
A clinical trial in hospitals gave Vitamin D to 500 pregnant woman reduced premature births by 78% in non whites
Note: have gone-beyond Random Clinical Trials, and trials are now giving good level of vitamin D to all pregnant women
See also PREGNANCY in VitaminDWiki
Overview Pregnancy and vitamin D
Iodine Deficiency During Pregnancy – many studies
Pregnancy helped by Magnesium - many studies
Reasons to have especially low levels of Vitamin D
Dark skin, Diabetes, Gut, (Multiple Sclerosis, Obesity, recent pregnancy, twins, concealing clothing, allergic to the sun. avoid the sun for other reasons- Low Vitamin D results in adverse pregnancy and birth outcomes – Wagner meta-analysis March 2017
- Vitamin D once during pregnancy reduced infant health care costs (300 times ROI) – RCT Dec 2015
- Ensure a healthy pregnancy and infant with as little as $20 of Vitamin D
- Pregnancy category has
904 items - Costs of Pregnancy much reduced by Vitamin D
For many pregnancies: 2000 IU helps, 4,000 IU is good, 6,000 IU is great
Includes number needed to treat- Preterm birth rate reduced 57 percent by Vitamin D – Nov 2015 Hispanic: 79% reduction
- Vitamin D of 32 to 60 ng is needed before, during, and after pregnancy – Dec 2012
- Routine monitoring of vitamin D during pregnancy is mandatory (Engl. and Port.) - May 2015
- Ensure a healthy pregnancy and infant with as little as $20 of Vitamin D
- Improved births with 2,000 IU vitamin D during pregnancy in India - RCT Feb 2015
Just 2,000 IU of vitamin D helps, > 4,000 is even better- Near the end of pregnancy 50,000 IU vitamin D weekly was great – RCT April 2013 weekly doses have been proven to be useful as well
- Birth weight and length increased with high levels of vitamin D – meta-analysis March 2015
- Vitamin D Webinar - cost of pre-term birth etc- Baggerly Nov 2013
- Pregnancy and Vitamin D – meta-analysis April 2015
- Pregnant women are vitamin D deficient - Map 2013
- More vitamin D needed during pregnancy – meta-analysis Oct 2014
61 Pregnancy AND Intervention studies - 3X reduction in preemie Bronchopulmonary Dysplasia if add tiny amount of Vitamin D – meta-analysis June 2024
- 4,000 IU of daily Vitamin D during pregnancy is good (Mongolia this time) – RCT Oct 2023
- Resulting childhood Asthma cut in half if 4,400 IU Vitamin D (5 ways to improve it) - RCT April 2023
- 6,400 IU of Vitamin D is safe and effective during breastfeeding – RCT Dec, 2020
- Vitamin D during pregnancy – single 200,000 IU similar to daily 5,000 IU – April 2020
- Massive improvement in vaginal microbiome during pregnancy with Vitamin D – March 2019
- Autism risk reduced 2X by prenatal vitamins (Vitamin D or Folic) – Feb 2019
- Fetal bones helped a bit by 1,000 IU of vitamin D – RCT Feb 2019
- Adding 1,000 IU vitamin D while pregnant did not help much (no surprise) – RCT Jan 2019
- Pregnancies helped a lot by Vitamin D (injection then 50,000 IU monthly) – RCT May 2018
- 430 genes changed when 3,800 IU Vitamin D added in late second trimester – RCT May 2018
- 300,000 IU of Vitamin D is not enough during pregnancy – RCT May 2018
- Preeclampsia risk reduced 7X by 4,000 IU of Vitamin D daily – RCT March 2018
- Risk of infant Asthma cut in half if mother supplemented Vitamin D to get more than 30 ng – RCT Oct 2017
- Gestational diabetes 30 percent less likely if consumed more than 400 IU of vitamin D daily – Oct 2017
- Monthly 120,000 IU Vitamin D plus daily Calcium was great during pregnancies – RCT Sept 2017
- Preterm birth rate reduced by vitamin D – 78 percent if non-white, 39 percent if white – July 2017
- 1,000 IU of Vitamin D while pregnant helped a little bit (4,000 IU helps a lot) – RCT Dec 2016
- Preeclampsia recurrence reduced 2 X by 50,000 IU of vitamin D every two weeks – RCT July 2017
- Only a select group of women will get a modest benefit from 800 IU of vitamin D – Jan 2017
- Reduction of infant asthma may require good vitamin D when lung development starts (4 weeks) – March 2017
- Gestational diabetes treated by Vitamin D plus Omega-3 – RCT Feb 2017
- 3,800 IU Vitamin D during pregnancy did not help much – RCT Jan 2017
- 50,000 IU of vitamin D for 8 weeks of pregnancy raised most above 30 nanograms - RCT Jan 2017
- Gestational Diabetes reduce 3 times by 5,000 IU of Vitamin D – RCT Jan 2016
- Preeclampsia risk reduced by higher levels of vitamin D (VDAART 4,400 IU) - RCT Nov 2016
- Gestational Diabetes treated with 50,000 IU every two weeks – RCT Sept 2016
- Perinatal depression decreased 40 percent with just a few weeks of 2,000 IU of vitamin D – RCT Aug 2016
- Pregnancy – adding 35,000 IU Vitamin D weekly was nice, but not enough – RCT April 2016
- Vitamin D once during pregnancy reduced infant health care costs (300 times ROI) – RCT Dec 2015
- Autism rate in siblings reduced 4X by vitamin D: 5,000 IU during pregnancy, 1,000 IU to infants – Feb 2016
- Preterm birth rate reduced 57 percent by Vitamin D – Nov 2015
- Pregnancy supplemented with 2,000 IU vitamin D got most infants to more than 12 nanograms – Aug 2015
- Preeclampsia reduced by Vitamin D (50,000 IU bi-weekly) and Calcium – Oct 2015
- Clinical trials for pregnancy with Vitamin D intervention – 51 as of Sept 2015
- No multiple sclerosis relapses during pregnancy if 50,000 IU of Vitamin D weekly – RCT April 2015
- Wheezing reduced 35 percent if vitamin D added during pregnancy – April 2015
- 4,000 IU raised vitamin D levels during pregnancy – July 2014
- Pregnant mothers in Quatar needed more than weekly 50,000 IU Vitamin D – Nov 2013
- Gestational diabetes – Vitamin D and Calcium provided huge benefits – RCT March 2015
- Pregnancy helped by single dose of 60,000 IU of Vitamin D – RCT March 2015
- Gestational diabetes reduced by just two 50,000 IU doses of vitamin D – RCT Nov 2014
- Improved births with 2,000 IU vitamin D during pregnancy in India - RCT Feb 2015
- 50,000 IU of Vitamin D every 2 weeks reduced gestational diabetes – RCT Feb 2015
- Infant much healthier if Gestational Diabetic mother got 2 doses of vitamin D – RCT Nov 2014
- 2000 IU vitamin D during pregnancy and 800 IU to infant resulted in less use of antibiotics – RCT April 2014
- Gestational Diabetes reduced with 50,000 IU of vitamin D every 3 weeks and daily Calcium – RCT June 2014
- Gestational Diabetes reduced 40 percent by 5,000 IU of vitamin D – RCT April 2014
- 5,000 IU Vitamin D was not enough to reduce preeclampsia but did help future infant – RCT April 2014
- Breast milk resulted in 20 ng of vitamin D for infant if mother had taken 5,000 IU daily – RCT Dec 2013
- See Vitamin D Interventions during pregnancy 22+ RCT as of May 2016
- Overview Pregnancy and vitamin D
See also INFANT-CHILD in VitaminDWiki
- Extreme preterm survival 30 percent less likely if little sunshine 23-28 weeks – June 2015
- Respiratory tract infection eliminated in 36 percent of people by 4000 IU of Vitamin D – RCT Sept 2015
- Infant-Child category listing has
841 items along with related searches - Bone fractures in children requiring surgery were 55X more likely with low vitamin D – June 2015
- 3X more kids were vitamin D deficient when entering UK hospitals than 4 years before – Oct 2014
- 75 percent of unexplained sudden infant deaths had inadequate level of vitamin D – April 2013
- Reduce Childhood Growing pains 1.5 times Vitamin D given to ALL children
- Low vitamin D is leading cause of death age 0 - 5 years
- See Vitamin D Interventions for children 15+ RCT as of May 2016
See also WOMEN in VitaminDWiki
- Fertility problem (PCOS) reduced by vitamin D: many studies
- Vitamin D helps women in many ways – review April 2015
- ALL of the top 10 health problems of women are associated with low vitamin D
- Overview Women and Vitamin D
- Women category listing has
196 items along with related searches - Irregular menstrual cycles associated with low vitamin D – March 2015
- Perhaps women have lower levels of Vitamin D because vitamin D hides in fat
- Recurrent urinary tract infection 4X more likely if low vitamin D – Aug 2013
- See Vitamin D Interventions for Women 6 RCT as of May 2016
See other in VitaminDWiki
- One pill every two weeks gives you all the vitamin D most adults need ~3700 IU average per day
- Can start benefitting from vitamin D in a week if use a loading dose
2-3 months is a LONG time to wait for vitamin D repletion during 9 month pregnancy - 40 ng of Vitamin D is good before, during, and after pregnancy, and actually is good for ALL humans at ALL stages of life
- 20 cent vitamin D pill similar to 2 hours sunbathing at 60 degree latitude – RCT Aug 2013
Short URL = is.gd/HealthyPreg
Healthy pregnancies need lots of vitamin D33110 visitors, last modified 15 Mar, 2024, This page is in the following categories (# of items in each category)
- Costs of Pregnancy much reduced by Vitamin D