I will add this, but by no means am I saying it was because of it, but at the time I was finishing up Humaworm, I had noticeable irregular heartbeats, but that is something my father has, AND many develop it around midle age. That was a year and a half ago and it's been persistent ever since. Now, I took the ingredient list to my doctor and the only thing he questioned was cayenne!. That was odd, since cayenne is supposed to be a stand alone that is good for the heart and circulation.
So, go to the Humaworm site and forum and read that and ask questions.