It has long been accepted and advised that newborn weight loss greater than 7% is abnormal, and supplementation is often recommended. 

But how did we arrive at that number as being the cutoff for "normal?" And was that based on the normal for breastfed babies, or formula-fed babies?

This course looks at the historical studies that recommendation was based on, and Dr. DiTomasso's recent original studies with different findings, in a quest to find an evidenced based answer to the questions of what normal weight loss is for (breastfed/chestfed) newborns.

Learning objectives:

1.The learner will list 2 problems with data collection in research studies focused on newborn weight.

2. The learner will identify a negative outcome associated with weight loss in newborns.

3. The learner will identify expected weight loss patterns for full term breastfeed neonates.

4.The learner will identify expected growth patterns for full term breastfeed neonates.


Approved by MEAC for 2 hours of continuing education. Approval number M1920-51-1228DE, through January 6, 2021

IBLCE has allocated 2 R-CERPs for this course. IBLCE verification number C1991360, through January 6th, 2021.

Course curriculum

  • 01
    1 Introduction and Review of Existing Research
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    • 1.1 Introduction and Overview
    • 1.2 A Systematic Review of Previous Research
    • (Article) Weighing the facts: A systematic review of expected patterns of weight loss in full-term, breastfed infants.
  • 02
    2 Challenging Expected Patterns of Weight Loss in Full-Term Breastfeeding Neonates Born by Cesarean
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    • 2.1 Study Design and Demographics
    • 2.2 Findings & Limitations
    • (Article) Challenging Expected Patterns of Weight Loss in Full-Term Breastfeeding Neonates Born by Cesarean
  • 03
    3 Neonatal Weight Matters: An examination of weight changes in full-term breastfeeding newborns during the first two weeks of life.
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    • 3.1 Study Design and Demographics
    • 3.2 Findings and Limitations
    • (Article) Neonatal Weight Matters: An examination of weight changes in full-term breastfeeding newborns during the first two weeks of life.
  • 04
    4 Conclusion, Post-test, and CE Certificate
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    • 4.1 Conclusion and Next Steps
    • MEAC Evaluation Questions
    • MEAC Post-Test and CE Certificate
    • IBLCE Post-Test and CE Certificate
  • Instructor

    Instructor Bio:

    Her recent prospective study examined weight changes in full-term breastfed newborns during the first two weeks of life, and was awarded the Journal of Human Lactation’s 2019 Best Research Article with A Practice Focus Award. Dr. DiTomasso teaches the maternal child health nursing course, and other undergraduate and graduate level courses at the University of Rhode Island College of Nursing. Prior to her scholarly work, Dr. DiTomasso had almost 27 years experience as an obstetrical nurse, and 15 years as a lactation consultant.

    Diane DiTomasso

    PhD, RN

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