Yes. My opinion is that colonics aren't very good at eliminating parasites--the parasites could be clinging to your intestinal walls, and there may be some in the small intestine as well as the colon. I would recommend that everyone, raw foodists included, do a parasite cleanse regularly. I've been raw for over three years and still pass parasites with almost every cleanse I do. I think the Dr. Natura cleanse is the best I've tried, and is an awesome colon cleanse to boot, but there are lots of effective natural and herbal parasite cleanses out there. You can also find instructions for DIY parasite cleanses if you look around.