Breastfeeding offers numerous health, nutritional, immunological, psychological, social, and economic benefits for both mother and child. Recommendations from the World Health Organization (WHO) and the United Nations International Children's Emergency Fund (UNICEF, now the United Nations Children's Fund) are evidence-based and advocate for exclusive breastfeeding during the first six months, with continued breastfeeding up to two years of age along with complementary feeding. Data from the birth registration database of healthcare institutions, which contains reports on all births in healthcare facilities in the Republic of Croatia, show that the rate of newborns breastfed in maternity hospitals varies, and a decline in exclusively breastfed infants has been recorded in recent years, although breastfeeding within one hour of birth shows a positive trend. The decrease in the proportion of exclusively breastfed newborns is concerning and urgently calls for increased investment and effort in promoting the positive aspects of breastfeeding for health, education, and providing more adequate support to mothers and healthcare workers. Community nurses play a key role in supporting breastfeeding, offering prenatal advice and practical postnatal assistance. Their early and consistent intervention, within a month of childbirth, can significantly influence the duration of exclusive breastfeeding. The collaboration and coordination of healthcare professionals involved in promoting breastfeeding are essential to ensure consistent, high-quality, and comprehensive support for mothers and their children, and they impact the length of breastfeeding. All healthcare workers involved in maternal and child care – gynecologists, pediatricians, family physicians, nurses, community nurses, and lactation consultants – should work together to promote breastfeeding and ensure that mothers receive consistent information and support, thereby contributing to a positive trend of increasing the number of newborns and infants who are exclusively breastfed or fed with breast milk.