According to a Health News story in Healthscout by Janice Billingsley, soy may not be that great for your heart. In an animal study showing strong links between diet and a specific type of heart disease, researchers report that consuming soy might adversely affect the condition called hypertrophic cardiomyopathy.

University of Colorado scientists found that when male mice who carried a gene mutation associated with hypertrophic cardiomyopathy (HCM), a disease in which the heart muscle thickens abnormally, were taken off their normal soy diets, their heart function improved significantly compared to HCM male mice who stayed with soy. Female mice with HCM did not show the same substantial change, according to the report.
That is interesting. I had been told that soy was supposed to be good for your heart. That a certain amount of Soy protein made for ahealthier heart. Jury is still out on that one I guess.