By comparing the IQ scores of more than 70 pairs of identical twins, European researchers found that the twin who weighed more at birth had a higher verbal score than the lighter twin.
It is already known that prenatal nutrition and birth weight are related to cognitive ability later in life.
This study in the journal Pediatrics reinforces the connection between good fetal nutrition and verbal development.
Researchers say developing a child's mind begins with good development in the womb.
