BBC NEWS | Health | Breast milk ‘does not boost IQ’
Breastfed children do tend to score higher on intelligence tests, but they also tend to come from more advantaged backgrounds.”
The researchers analysed data from more than 5,000 children and 3,000 mothers in the USA.
They found that mothers who breastfeed tend to be more intelligent, and when this fact was taken into account, most of the relationship between breastfeeding and the child’s intelligence disappeared.
The rest was accounted for by other aspects of the family background.