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Breastfeeding promotes growth of beneficial bacteria in gut

Date:
May 7, 2014
Source:
Technical University of Denmark (DTU)
Summary:
The nutritional factor that has the greatest impact on the development of a child's gut flora is whether the child is breastfed, according to a new study. The study shows that breastfeeding promotes the growth of beneficial lactic acid bacteria in the baby's gut flora, which are beneficial to the development of the child's immune system.

A baby being breastfed (stock image). Children who are breastfed also have a slightly lower incidence of obesity, allergies, diabetes and inflammatory bowel disease later in life. According to a new study, this may be due to the fact that breastfeeding promotes the development of beneficial bacteria in the baby's gut.
Credit: © Adrin Shamsudin / Fotolia

The nutritional factor that has the greatest impact on the development of a child's gut flora is whether the child is breastfed, according to a new study by the National Food Institute, Technical University of Denmark, and the University of Copenhagen. The study shows that breastfeeding promotes the growth of beneficial lactic acid bacteria in the baby's gut flora, which are beneficial to the development of the child's immune system.

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A number of studies have shown that breastfed babies grow slightly slower and are slightly slimmer than children who are fed with infant formula. Children who are breastfed also have a slightly lower incidence of obesity, allergies, diabetes and inflammatory bowel disease later in life. According to a new study by the National Food Institute and the University of Copenhagen this may be due to the fact that breastfeeding promotes the development of beneficial bacteria in the baby's gut.

"We have become increasingly aware of how crucially important a healthy gut microbial population is for a well-functioning immune system. Babies are born without bacteria in the gut, and so it is interesting to identify the influence dietary factors have on gut microbiota development in children's first three years of life," research manager at the National Food Institute Tine Rask Licht says.

Gut microbes change in the first years of life

The study shows that there are significant changes in the intestinal bacterial composition from nine to 18 months following cessation of breastfeeding and other types of food being introduced. However, a child's gut microbiota continues to evolve right up to the age of three, as it becomes increasingly complex and also more stable.

"The results help to support the assumption that the gut microbiota is not -- as previously thought -- stable from the moment a child is a year old. According to our study important changes continue to occur right up to the age of three. This probably means that there is a 'window' during those early years, in which intestinal bacteria are more susceptible to external factors than what is seen in adults," Tine Rask Licht explains.

Strategies for the development of healthy gut flora

"The results from the study can be used to support initiatives that can be used to help children develop a type of gut microbiota, which is beneficial for the immune system and for the digestive system. This could for example be advice to mothers about breastfeeding or the development of new types of infant formula to promote the establishment of beneficial bacteria in the gut," Tine Rask Licht says.


Story Source:

The above story is based on materials provided by Technical University of Denmark (DTU). Note: Materials may be edited for content and length.


Journal Reference:

  1. A. Bergstrom, T. H. Skov, M. I. Bahl, H. M. Roager, L. B. Christensen, K. T. Ejlerskov, C. Molgaard, K. F. Michaelsen, T. R. Licht. Establishment of Intestinal Microbiota during Early Life: a Longitudinal, Explorative Study of a Large Cohort of Danish Infants. Applied and Environmental Microbiology, 2014; 80 (9): 2889 DOI: 10.1128/AEM.00342-14

Cite This Page:

Technical University of Denmark (DTU). "Breastfeeding promotes growth of beneficial bacteria in gut." ScienceDaily. ScienceDaily, 7 May 2014. <www.sciencedaily.com/releases/2014/05/140507095910.htm>.
Technical University of Denmark (DTU). (2014, May 7). Breastfeeding promotes growth of beneficial bacteria in gut. ScienceDaily. Retrieved November 29, 2014 from www.sciencedaily.com/releases/2014/05/140507095910.htm
Technical University of Denmark (DTU). "Breastfeeding promotes growth of beneficial bacteria in gut." ScienceDaily. www.sciencedaily.com/releases/2014/05/140507095910.htm (accessed November 29, 2014).

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