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Related Experiment Videos

How much protein is safe?

C Agostoni1, S Scaglioni, D Ghisleni

  • 1Department of Pediatrics, San Paolo Hospital, University of Milan, Milan, Italy. carlo.agostoni@unimi.it

International Journal of Obesity (2005)
|December 31, 2005
PubMed
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Safe protein intake for infants is crucial for preventing childhood overweight. Recommendations suggest 8-12% protein for infants up to 24 months, emphasizing breastfeeding and age-appropriate formulas.

Area of Science:

  • Pediatric Nutrition
  • Childhood Obesity Prevention
  • Human Lactation Studies

Background:

  • Breastfeeding and human milk intake are associated with reduced risk of later overweight.
  • High dietary protein intake in early life may promote the development of overweight.
  • Determining safe protein intake levels during infancy is critical.

Purpose of the Study:

  • To review data on protein content in human milk and infant protein intake.
  • To examine the association between early protein intake and body mass development.
  • To establish safe protein intake ranges for infants and young children.

Main Methods:

  • Literature review of human milk protein content.
  • Analysis of protein intake data in the first two years of life.

Related Experiment Videos

  • Correlation analysis between protein intake and body mass development.

    • Main Results:

    • Recommended protein intake should increase from 7-8% at 4 months to 14% by 12-24 months.
    • Protein intake below 6% with limited energy can lead to negative nutrient balance.
    • Exceeding 14% protein intake in infants (6-24 months) may trigger early adiposity rebound and overweight, with potential links to cow's milk proteins.

    Conclusions:

    • Breastfeeding should be maintained for as long as possible.
    • Age-appropriate infant formulas should be used when human milk is insufficient, up to 18-24 months.
    • Maintaining protein intake within the 8-12% range is recommended for infants up to 24 months, ensuring adequate energy and macronutrient balance.