Breast milk is uniquely suited to provide ideal nutrition for infant growth and development. The World Health Organization recommends exclusive breastfeeding for the first six months of life, followed by continued breastfeeding and appropriate complementary foods up to two years or beyond. Key guidelines include initiating breastfeeding within one hour of birth, exclusive breastfeeding for six months with no other food or drink, and continued breastfeeding alongside adequate complementary foods introduced at six months.