I was diagnosed with P.A.C. (a heart condition) this year. it's completely benign. Had a full workup and they could not explain why I had it. I always thought it had something to do with my blood sugar, too high or too low. so, I thought I would try taking cinnamon pills to see what happened, and guess what, no more PAC \heart palpitations. well, if I forget to take it, I get them. I take between 3-4 capsules a day, spread out. this kid of cinnamon is pretty potent, so too much could cause your blood to be too think and you could stroke out or just Bruise easily. well, I'm not bruising easily, so I think I'm ok. I also started taking neem and triphalla at the same time, but it's the cinnamon that keeps the palpitations away