In these days of changing attitudes toward breast-feeding, the pediatrician often sees a mother who is experiencing difficulties with nursing. These young women, believing in "nature's proper food," feel that breast-feeding is psychologically and physically better for mother and child, yet at the same time complain about inadequate milk supply or local discomfort. Despite a sympathetic ear and reassurance, some of these mothers may stop nursing, but may retain a sense of guilt. Merely telling them that cow's milk has proven quite adequate for human infants in the past may not assuage their guilt feelings.