It’s long been known that breastfeeding is better than formula for strengthening children’s immune systems, but research shows it also helps prevent childhood obesity. Based on a study of 32,000 Scottish children aged 39 and 42 months, research published in The Lancet (June 8, 2002) concluded that breastfed infants have a 30 per cent reduced risk of childhood obesity compared to formula-fed children. A new 10-year Canadian study is also underway that will examine if formula-fed infants are also at risk for type II diabetes. Meanwhile, researchers recommend breastfeeding for as long as possible, or for at least six to eight months before using formula.