News from CREAL
Eating fish more than three times a week during pregnancy was associated with mothers giving birth to babies at increased risk of rapid growth in infancy and of childhood obesity, according to an article published online by JAMA Pediatrics. Manolis Kogevinas, researcher at CREAL and ISGlobal, has participated in this study.
Leda Chatzi, M.D., Ph.D. of the University of Crete, Greece, and coauthors analyzed data from 26,184 pregnant women and their children in European and U.S studies to examine associations with maternal fish intake and childhood growth and overweight/obesity. Children were followed-up at two-year intervals until the age of 6. Women who ate fish more than three times per week when they were pregnant gave birth to children with higher BMI values at 2, 4 and 6 years of age compared with women who ate fish less. High maternal fish intake during pregnancy also was associated with an increased risk of rapid growth from birth to 2 years and with an increased risk of overweight/obesity for children at ages 4 and 6 years compared with maternal fish intake while pregnant of once a week or less, the results indicate. The magnitude of the effect of fish intake was greater in girls than boys.
“Contamination by environmental pollutants in fish could provide an explanation for the observed association between high fish intake in pregnancy and increased childhood adiposity,” Kogevinas explains. However, the researchers note that while they collected information on the consumption of different fish types, they did not have enough data to distinguish between species, cooking procedures and the water source of the fish from rivers or the sea.
JAMA Pediatr. Fish Intake in Pregnancy and Child Growth: A Pooled Analysis of 15 European and US Birth Cohorts. Published online February 15, 2016. doi:10.1001/jamapediatrics.2015.4430