I started it, but seemed to react to the high dosages (probably not the vitamin C). I also tried the garlic/lemon juice elixer, which is essentially the same, and I don't know if it was coincidental, but after just one course of that (supposed to be two course separated by a week), my blood pressure was significantly lower than when I had previously monitored it many months ago. My wife and I are getting ready to do another round of the garlic/lemon juice.