- Women who eat more fish during pregnancy have lower rates of infants diagnosed as small for gestational age (SGA).
Why this matters
- Fish consumption has been associated with a higher IQ and extended gestation time and may affect fetal body composition.
- Concern for environmental contamination with methylmercury and polychlorinated biphenyls has led regulatory agencies to warn about overconsumption of some fish and consumption of "safer" species during pregnancy.
- SGA is associated with perinatal complications.
- A higher fish intake was associated with lower risk for SGA (fish intake >29 g/day: aOR, 0.63; 95% CI, 0.41-0.98).
- Case-control study of cohort taken from 5 hospitals in Spain between 2012 and 2015.
- Healthy women with uncomplicated pregnancies were included.
- Women with SGA babies were compared with control women (SGA is defined as birth weight
- Data on fish consumption were collected through interviews, clinical charts, and medical records.
- Funding: The National Institute of Health Carlos III.
- Data subject to recall bias; participants may not accurately quantify how much and what type of fish was eaten.
- This study only assessed for weight; other neonatal and childhood outcomes were not addressed.
- Results may not be generalizable to other communities.