Pediatrics Nutrition is the description of the dietary needs of infants. A diet lacking essential calories, minerals, vitamins, or fluids is considered inadequate. Breast milk provides the best nutrition for these vital first months of growth when compared to formula. For example, breastfeeding aids in preventing anemia, obesity, and sudden infant death syndrome; and it promotes digestive health, immunity, and intelligence. The American Academy of Pediatrics recommends exclusively feeding an infant breast milk, or iron fortified formula, for the first twelve months of life. Infants are usually not introduced to solid foods until four to six months of age. Historically, breastfeeding infants was the only option for nutrition otherwise the infant would parish. Breastfeeding is rarely contraindicated, but is not recommended for mothers being treated for cancer, those with active tuberculosis, HIV, substance abuse, or leukemia. Clinicians can be consulted to determine what is best for each baby.