Thanks for your response. No this is not the first time I've done a bowel cleanse. The last time I used Dr. Natura's which was good. I just wanted to try something else for diversity this time. But I continued to have a reaction the following 2 days after discontinuing the intestimal formula 1 product. I know the difference between a cleansing reaction and an allergic or (bad for my blood type reaction) as I've been into natural remedies, different food programs, etc for many years and I have found that the Blood Type Diet was the only thing that turned my chronic health condition around and made a difference. The naturopath I went to said the same thing, that in all his practice the only thing he found that turned chronic desease condition around was the Blood Type Diet . My sister also went to a naturopath, a lady naturopath who gave her and her daughter a list of blood type specific foods to help them. So I know the problem is that the intestinal formula has things in it that are avoid for my blood type and my body responded negatively. I just need to find a product that is blood type A friendly. Thank you for the info.