Genetic testing performed by Existence Genetics enables parents to have access to this extremely useful information about their newborn. Although it may be ideal for most mothers to breastfeed, many are in situations that make the decision not so simple. For example, some women take medications that prevent them from breastfeeding, and others experience pain, poor milk production, and other difficulties.If the baby doesn’t have this gene then breastfeeding appears to have no effect upon IQ.
Empowered by this groundbreaking research, Existence Genetics now provides women, pediatricians, wet nurses, and lactation consultants with exclusive genetic testing services that will allow them to make a more informed decision about breastfeeding.Infants who have a specific version of the FADS2 gene will have an increase of approximately 7 IQ points, whereas infants without the variant won’t experience any IQ boost from breastfeeding.
Steer CD, Davey Smith G, Emmett PM, Hibbeln JR, Golding J (2010) FADS2 Polymorphisms Modify the Effect of Breastfeeding on Child IQ. PLoS ONE 5(7): e11570.
And another study:
Martin NW, Benyamin B, Hansell NK, Montgomery GW, Martin NG, Wright MJ, Bates TC. Cognitive function in adolescence: testing for interactions between breast-feeding and FADS2 polymorphisms. J Am Acad Child Adolesc Psychiatry. 2011 Jan;50(1):55-62.e4. Epub 2010 Dec 3.