The second study (following up on my last post), also published in Pediatrics, involves a comparison between soy formula and cow’s milk formula. The concern: given the known differences in cognitive development between breast and formula-fed babies, does soy pose any additional risks when compared with cow’s milk formula?
The authors, Aline Andres and colleagues at the University of Arkansas, focused on the role of isoflavones, an estrogen-like chemical found in soy. Their results: there was no difference in behavioral, psychomotor, and language development in the soy-fed babies compared with those who drank cow’s milk formula.
But…what they did find (again) is that neither the soy nor the cow’s milk groups did as well on testing as did breastfed babies. This difference held up even after mother’s age, socio-economic status, and IQ were taken into consideration.
So what is the deal about breastfeeding and better scores (or should I say formula feeding and lower scores)? More on that subject down the road…