Childhood Asthma risk greatly reduced if mothers were given 4,400 IU Vitamin D daily – RCT 2019

To be published in 2019

Based on data from VDAART
Vitamin D supplementation in pregnancy, prenatal 25(OH)D levels, race, and subsequent asthma or recurrent wheeze in offspring: Secondary analyses from the Vitamin D Antenatal Asthma Reduction Trial.
J Allergy Clin Immunol. 2017;140(5):1423-9 e5.
Wolsk HM, Harshfield BJ, Laranjo N, Carey VJ, O'Connor G, Sandel M, et al.
This secondary analysis of the VDAART study is the first to show that the effect of prenatal supplementation with vitamin D on asthma and recurrent wheeze is modified by the initial maternal level of circulating vitamin D early in pregnancy. This work suggests that having a higher vitamin D level at the beginning of pregnancy and maintaining the level throughout pregnancy maximizes the preventive effect of vitamin D on asthma and recurrent wheeze in offspring.

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Breathing category starts with the following

451 items in Breathing category

Breathing-related Overviews at VitaminDWiki:
Allergy   Lung Cancer   TB   Asthma  Influenza  Colds and flu
Pneumonia   Respiratory infections   COPD   Air Polution   Smoking   Cystic Fibrosis

Healthy pregnancies need lots of vitamin D has the following summary

Most were taking 2,000 to 7,000 IU daily for >50% of pregnancy
   Click on hyperlinks for details

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 The earlier the vitamin D levels are raised during pregnancy, the better the outcome

Ensure a healthy pregnancy and baby - take Vitamin D before conception

Lung development starts early during pregnancy