We are excited to share the results of recent research published by the P3 Cohort team using data from the P3 Cohort.

Obstetrical Outcomes in Pregnant Patients Following a Gluten-Free Diet: A Prospective Cohort Study (2026)

In this recent study, published in the International Journal of Gynecology & Obstetrics, Dr. Amelia Srajer and members of the P3 Cohort team explored whether following a gluten-free diet during pregnancy is linked to differences in pregnancy and birth outcomes. Gluten-free diets are becoming more common, but there is still limited research on how they may affect pregnancy.

Using data from over 2,300 participants in the P3 Cohort, the study found that about 5% followed a gluten-free diet during pregnancy. Participants who followed a gluten-free diet had similar pregnancy and birth outcomes compared to those who did not. This included outcomes such as preterm birth, gestational diabetes, and cesarean birth—and findings were similar even among participants without celiac disease.

These results suggest that, in this cohort, following a gluten-free diet during pregnancy was not linked to increased risk of adverse outcomes. More research is still needed, but this study helps provide helpful information for individuals and families making dietary choices during pregnancy.

To read the paper, click here.

Srajer A, Harris M, Santos J, et al. Obstetrical outcomes in pregnant patients following a gluten-free diet: A prospective cohort study. Int J Gynecol Obstet. 2026;00:1-7. doi:10.1002/ijgo.70843