Thyroid Dysfunction & The Risk of Preterm Birth

Association of Thyroid Function Test Abnormalities and Thyroid Autoimmunity with Preterm Birth


This systematic review and meta-analysis investigated links between thyroid dysfunction and the risk of preterm birth.

The risk of a preterm birth, defined as less than 37 weeks, was increased for women with subclinical hypothyroidism, positive thyroid (TPO) antibodies and low thyroxine (T4) levels.

Sometimes a woman is prescribed thyroxine during pregnancy because her body is not making enough naturally.

Iodine is required to make T4 (thyroxine).  T4 actually converts into the more active form T3 (triiodothyronine) in the body.  For this to occur efficiently, a person requires adequate zinc and selenium.  NaturoBest Prenatal Trimester 2 & 3 Plus Breastfeeding contains excellent levels of these three very important minerals.



Ref: JAMA. 2019; 322(7):632-641

Thyroid Dysfunction & The Risk of Preterm Birth