Despite the evidence that supplementing omega-3 EFA’s during pregnancy reduces the risk of preterm births, omega-3’s are not usually included in prenatal vitamins. This study set out to see if adding them would reduce the risk of preterm births.
The study included 9,461 pregnant women. It found women who supplemented omega-3 EFA’s on top of their prenatal vitamins were a significant 36% less likely to have a preterm birth and 35% less likely to give birth to a baby who was small for their gestational age.
This study suggests that making omega-3 part of your prenatal supplement program may help protect against preterm birth.
Front. Nutr. January 2026;12:doi.org/10.3389/fnut.2025.1693844.