10/13/2026
Doulas and midwives! Have you tried tums for long labors? This looks promising
A randomized controlled trial published in the Journal of Maternal-Fetal & Neonatal Medicine studied 200 women experiencing labor dystocia, meaning labor had become unusually slow or stalled. Researchers measured amniotic-fluid lactate (AFL), a marker associated with uterine muscle metabolism and difficult labor, and randomly assigned the women to receive oral sodium bicarbonate (baking soda) or no bicarbonate.
Women receiving bicarbonate waited one hour before oxytocin was started, while the control group received oxytocin immediately.
After one hour, bicarbonate significantly lowered amniotic-fluid lactate levels (p < 0.001). More importantly, women who received bicarbonate had a significantly higher rate of spontaneous vaginal delivery (p = 0.007), with no detected worsening of fetal outcomes. The researchers proposed that lowering lactate might improve uterine muscle performance during stalled labor.
PMID: 28587493