Certified Lactation Consultant Practice Exam 2026 - Free Lactation Consultant Practice Questions and Study Guide

The maximum weight loss a breastfed infant can safely experience from their birth weight is 7%. It is normal for infants to lose some weight shortly after birth as they adjust to life outside the womb; this initial weight loss is primarily due to the loss of excess fluid and the adjustment to feeding patterns. Health care providers generally consider a loss of up to 7% of the birth weight to be acceptable for breastfed infants within the first week.

If an infant exceeds this weight loss (for example, 10% or more), it may be a cause for concern and can indicate issues such as inadequate feeding, breastfeeding difficulties, or other health challenges that may require intervention or additional support.

Maintaining awareness of these weight loss guidelines is crucial for lactation consultants and health care providers in monitoring breastfeeding infants’ health and ensuring they are feeding effectively.