Exposure to breast milk in infancy and the risk of breast cancer. Neucomb et al. Lactation and reduced risk of premenopausal breast cancer. New England Journal of Medicine. Breast-feeding protects against otitis media.
Studies confirm diabetes risk from cow's milk in infants.
Dewey et al. A randomized study of the effects of aerobic exercise by lactating women on breast milk volume and composition. New England Journal of Medicine. All Rights Reserved, Dynamic Chiropractic, 2001.