Breastfeeding has been associated with higher IQs and other measures of cognitive and developmental abilities, but the studies were often dismissed because breastfeeding and IQs also parallel social, cultural and occupational differences. In other words, who's to say that breastfeeding made Johnny smarter when it could have been that his parents were also better educated and wealthier than Jimmy's and therefore they could have provided other advantages to increase his scholastic performance.

Moms who aren't breastfeeding are often worried about which formula to give and are they really safe for their baby (especially after the recent Chinese formula scare).  And some feel guilty that they aren't or can't breastfeed.

An Institute of Medicine 2011 report1 showed that 20% of 2-5 year-olds are overweight or obese (over the ninety-seventh percentile for age). That’s an amazing 1 in every 5 children that age, an increase from 1 in 20 (5%) in 1980. And before that, over 10 percent of those under 2 are already overweight.