Fascinating. This means it's even more important for women to have healthy pregnancies: "Diet and epigenetics appear to be closely linked. The most well known example is that of the Agouti mice: they are yellow, fat and are prone to diabetes and cancer. If Agouti females are fed with a cocktail of vitamin B12, folic acid and cholin, directly prior to and during pregnancy, they give birth to mainly brown, slim and healthy offspring, which in turn have mainly offspring similar to themselves." And it gives me hope that the obesity epidemic in America can be repaired as quickly as it spread. - Jared Jacobs