Let me share some of my knowledge with some of you..
First off ALL colon cleaning systems will have bad side effects, of at least minor cramps. They all require you to drink up to 80 oz of water a day. I doubt any of you drink that much water normally. Second, keep in mind everyones health, and bodies are different. Additional medications, and diets probably make things even more complex.
My mother has taken two types of colon cleanse systems. One I know for a fact, is Detox7 because Im looking at the instructions right now. I was going to take this, but I wanted to look further into other brands. My mother only complained of headaches, and minor cramps with a boost of energy afterward (this could be all in her head also - the placebo affect)
Herbs vs. Drugs
We all know who the FDA is right? None of these colon cleanse systems are FDA approved. Understand that many herbs have not been regularly tested. The FDA deals more with drugs, than herbs. I have to say that most drugs are bad news, even ones that help us. The FDA simply wont take the time and effort to find safer herbal alternatives. Not all herbs are good however. Some can be harmful. I can think of an herb right now, that is more powerfull than any hallucinogenic drug on the streets and basicly gives you a 70% chance or more of death. Understand, that herbs can be safer than drugs, but still hold a mystery to the medical field and could be dangerous to all if not some people.
About all this colon cleanse business
I am begining to second guess ALL colon cleansing systems. Why? Well, because I value my health. Reading this entire thread makes me realize there are risks involved. I do not take risks, even if they are a one in a million. The only way I would consider taking any colon cleansing product, if I had some type of long lasting problems of constipation like some of you have had. If you are fairly healthy like me, and just want to see aliens come out of you I would not suggest trying this.
DO NOT question my intelligence, for not trying colonix and saying all of this. Only an fool would risk his health, to possibly see a slight improvement. Gamble with money all you want, but not with your health.
Parasites?
If you are afraid of parasites in your body, dont be. First off, the most common parasites show up in young children. Thread Worms, especially, are not a problem if you are reading this more than likely. These worms are very contagious, so if your child has them then you probably will have them also. Worst case scenario, your whole family will have to go to the doctor and take some pills to rid them. Any other worm, or parasite you usually get in very tropical areas of the world. Usually what happens is you drink foreign water, or are bit by an infected mosquito. Thats what happens when you get major parasites, which will probably never happen to you.
Again, I would like to confirm that Colonix, or any other type of colon cleanse is not bad or good. It depends what type of person you are. Just dont believe everything you hear. Bad and good results can come from outside the colon cleanse systems as well. For example, people may have bad side affects because they are allergic to a specific herb, or someone may feel more energy because they forgot they drank an extra cup of coffee or its simply the placebo affect.
Personally, I would love to pick up some of this stuff and clean out my system because I have eaten a lot of junk over the years. I just have not convinced myself its worth the risk until I find out more information. If I did have to take one, I would take an oxygen based colon cleanse. These types use oxygen to break down everything, and liquify the bulk.