That's been posted before on here good read.
That doesn't neccesarily mean clen is good for the heart, it could stress or damage the heart in normal helathy people-especially o the higher doses and long term use many bb'ers use it for.
I have seen lots of stuff in the euro literature on it.
There was a reason that it was never pursued in america both for cattle and for human use.
I never went too far in the research because clen always sucked for me wicked headaches, cramps, spasms hell made me feel like I was on the rag.
Not saying that this stuff will kill you I know a lot of people that love it and get great results offa it but I could never get past the sides to reap the benefits.