Many more millions suffer from infectious diseases and malnutrition, never reaching their full potential because they were bottlefed. Every 30 seconds, a baby dies from unsafe bottle feeding . Without breast feeding babies don't get the benefit of passive immunity normally passed on in the mothers' milk. The risk of contracting serious diseases from bottle feeding is therefore high, but it is further compounded by the fact that, in the Third World, many people don't have access to a clean water supply with which to make up the formula, and poverty can lead to mothers over-diluting the formula to make it go further.
Many places list the benefits of breastfeeding to both mother and baby.