Conclusions: Exclusive breastfeeding in the first 6 months of life provides adequate physical growth, resulting in
height and weight gain curves that are similar to or greater than the NCHS, 1977 and WHO, 2006 curves. The
greater mean weight at the fifth and sixth months of life suggests that the second-quarter growth curves of children
who are exclusively breastfed are greater than those of children who receive other types of food.