Iron Consumption Is Not Consistently Associated with Fecundability among North American and Danish Pregnancy Planners.

ABSTRACT:

Background

Infertility is an important public health problem with few known modifiable risk factors. Dietary factors including folic acid have been associated with improved fertility, but the association between iron and fertility is understudied. One study among US nurses found a 40% lower risk of ovulatory infertility with higher intake of nonheme iron and iron supplements.

Objectives

The aim of this study was to determine the extent to which iron intake from diet and supplements reported on structured questionnaires is associated with fecundability.

Methods

We conducted parallel analyses that used data from 2 prospective cohort studies of pregnancy planners from Denmark (Snart Foraeldre; n = 1693) and North America (PRESTO; n = 2969) during 2013-2018. Follow-up com

SUBMITTER: Hahn KA 

PROVIDER: S-EPMC6735943 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature