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.

Breathing category starts with the following

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Healthy pregnancies need lots of vitamin D has the following summary

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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