Research shows that HMOs have an important role to play by supporting infant health in various ways. These include influencing the gut microbiome, reducing the risk of infection and supporting the brain development of infants
Bode, L. (2012). Human milk oligosaccharides: Every baby needs a sugar mama. In Glycobiology. https://doi.org/10.1093/glycob/cws074 and inhibits in vitro binding of viral and bacterial pathogens associated with childhood diarrhoea, like norovirus, rotavirus and ETEC
Bode, L., Kuhn, L., Kim, H.-Y., Hsiao, L., Nissan, C., Sinkala, M., Kankasa, C., Mwiya, M., Thea, D. M., & Aldrovandi, G. M. (2012). Human milk oligosaccharide concentration and risk of postnatal transmission of HIV through breastfeeding. The American Journal of Clinical Nutrition, 96(4), 831–839. https://doi.org/10.3945/ajcn.112.039503
Bode, L., & Jantscher-Krenn, E. (2012). Structure-function relationships of human milk oligosaccharides. Advances in Nutrition. https://doi.org/10.3945/an.111.001404
. Different individual HMOs have been shown to have different effects
Asakuma S, Hatakeyama E, Urashima T, et al. Physiology of consumption of human milk oligosaccharides by infant gut-associated ifidobacterial. J Biol Chem. Published online 2011. Doi:10.1074/jbc.M111.248138
Bode, L., & Jantscher-Krenn, E. (2012). Structure-function relationships of human milk oligosaccharides. Advances in Nutrition. https://doi.org/10.3945/an.111.001404
Lin, A. E., Autran, C. A., Szyszka, A., Escajadillo, T., Huang, M., Godula, K., Prudden, A. R., Boons, G. J., Lewis, A. L., Doran, K. S., Nizet, V., & Bode, L. (2017). Human milk oligosaccharides inhibit growth of group B Streptococcus. Journal of Biological Chemistry. https://doi.org/10.1074/jbc.M117.789974
Salli K, Hirvonen J, Siitonen J, Ahonen I, Anglenius H, Maukonen J. Selective Utilization of the Human Milk Oligosaccharides 2′-Fucosyllactose, 3-Fucosyllactose, and Difucosyllactose by Various Probiotic and Pathogenic Bacteria. J Agric Food Chem. Published online 2021. doi:10.1021/acs.jafc.0c06041
Watson D, O’Connell Motherway M, Schoterman MHC, van Neerven RJJ, Nauta A, Van Sinderen D. Selective carbohydrate utilization by lactobacilli and bifidobacteria. J Appl Microbiol. Published online 2013. doi:10.1111/jam.12105
Yu, Z. T., Chen, C., Kling, D. E., Liu, B., McCoy, J. M., Merighi, M., Heidtman, M., & Newburg, D. S. (2013). The principal fucosylated oligosaccharides of human milk exhibit prebiotic properties on cultured infant microbiota. Glycobiology. https://doi.org/10.1093/glycob/cws138
, so they may complement each other in supporting infant health.