Does low consumption of sea food in early pregnancy create a higher risk of preterm delivery?

From: BMJ

Journal rating:
rating: 99%
Study Quality:
rating: 25%

Overall Reliability

Article Quality:
rating: 35%
rating: 50%


  • 8,729 pregnant women.


  • Participants receiving routine antenatal care were asked to complete a self administered questionnaire in weeks 16 and 30 of gestation. 


  • The occurrence of preterm delivery differed significantly across four groups of seafood intake, falling progressively from 7.1% in the group never consuming fish to 1.9% in the group consuming fish twice/week.
  • Odds for preterm delivery were increased by a factor of 3.6 in the zero consumption group compared with the highest consumption group.
  • Low consumption of fish was a strong risk factor for preterm delivery and low birth weight.
  • The associations were strongest below a daily intake of 0.15 g long chain n-3 fatty acids or 15 g fish.


  • Yes (with confidence)


Editors Notes

  • The authors recommend that in women with zero or low intake of fish, small amounts of n-3 fatty acids—provided as fish or fish oil—may provide protection against preterm delivery and low birth weight.