A mouse study has found that the diet of a pregnant mother, especially in regards to choline, can change the epigenetic switches that control brain development in the fetus. Pregnant mice received different diets during the period when a fetus develops its hippocampus. The genetic changes affected neurogenesis. The findings add to other research pointing to the effects of maternal diet on fetal development. Top sources of choline are eggs and meat. Fish and soy are also good sources.
 . Choline deficiency alters global histone methylation and epigenetic marking at the Re1 site of the calbindin 1 gene. FASEB J. [Internet]. 2010 ;24(1):184 - 195. Available from: http://www.fasebj.org/cgi/content/abstract/24/1/184