This is in answer to a pet post but I believe it should be put in the human section also. If the moderator will do so I think lots of people can benefit from Joe Vialls story of potassium chloride as vital for life.
I don't know about heart murmurs but potassium chloride seems to cure everything heart related. This man, Joe Vialls, cured himself of 25 years of hi blood pressure and angina by ending life long potassium deficiency. Here is his story:
Personally I had begun to have rapid heart beats maybe once a month for a few seconds only. Still it was scary. I read Joe Vialls article and his story fascinated me and purchased Now Foods potassium chloride on the web http://www.iherb.com/Now-Foods-Potassium-Chloride-Powder-8-oz-227-g/777
This was many years ago so I don't remember how or how much I took but the rapid heart beats are long gone. I moved two years ago and don't know where my potassium chloride disappeared to.