An investigation among 2,195 children followed up to age 6 years concludes that less exclusive breastfeeding leads to increases in child asthma and atopy.
WH Oddy, JL Sherriff, NH de Klerk, GE Kendall, PD Sly, LJ Beilin, KB Blake, LI Landau, and FJ Stanley. The relation of breastfeeding and body mass index to asthma and atopy in children: a prospective cohort study to age 6 years. Am J Public Health, 2004; 94: 1531-7
