Picture of a sphere with binary code

Making Strathclyde research discoverable to the world...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. It exposes Strathclyde's world leading Open Access research to many of the world's leading resource discovery tools, and from there onto the screens of researchers around the world.

Explore Strathclyde Open Access research content

Duration of exclusive breast-feeding: introduction of complementary feeding may be necessary before 6 months of age

Reilly, John J and Wells, JCK (2005) Duration of exclusive breast-feeding: introduction of complementary feeding may be necessary before 6 months of age. British Journal of Nutrition, 94 (06). pp. 869-872. ISSN 0007-1145

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

The WHO recommends exclusive breast-feeding for the first 6 months of life. At present, <2 % of mothers who breast-feed in the UK do so exclusively for 6 months. We propose the testable hypothesis that this is because many mothers do not provide sufficient breast milk to feed a 6-month-old baby adequately. We review recent evidence on energy requirements during infancy, and energy transfer from mother to baby, and consider the adequacy of exclusive breast-feeding to age 6 months for mothers and babies in the developed world. Evidence from our recent systematic review suggests that mean metabolisable energy intake in exclusively breast-fed infants at 6 months is 2·2–2·4 MJ/d (525–574 kcal/d), and mean energy requirement approximately 2·6–2·7 MJ/d (632–649 kcal/d), leading to a gap between the energy provided by milk and energy needs by 6 months for many babies. Our hypothesis is consistent with other evidence, and with evolutionary considerations, and we briefly review this other evidence. The hypothesis would be testable in a longitudinal study of infant energy balance using stable-isotope techniques, which are both practical and valid.